132-464: The Historicorum Romanorum reliquiae is the "monumental" two-volume collection of scholarly editions of fragmentary Roman historical texts edited by Hermann Peter and published between 1870 and 1914. Peter published the Latin editions of these texts, without translation and with introductions in Latin; for the greatest part of the twentieth century, this was the standard edition of such texts. Peter considers
264-429: A Roman emperor ) was Octavian . He was the grand-nephew and later posthumously adopted as the son and heir of Julius Caesar , who had been murdered for his seeming aspiration to divine monarchy, then subsequently and officially deified. Octavian studiously avoided any association with Caesar's claims, other than acknowledging his position and duties as Divi filius ("son of the deified one"). Nevertheless, his position
396-507: A Christian, he waited to be baptised on his deathbed, believing that the baptism would release him of any sins he committed in the course of carrying out his policies while emperor. He supported the Church financially, built basilicas, granted privileges to clergy (such as exemption from certain taxes), promoted Christians to high office, and returned property confiscated during the long period of persecution. His most famous building projects include
528-544: A collection of panegyrics from the late 3rd and early 4th centuries, provides valuable information on the politics and ideology of the tetrarchic period and the early life of Constantine. Contemporary architecture—such as the Arch of Constantine in Rome and palaces in Gamzigrad and Córdoba — epigraphic remains, and the coinage of the era complement the literary sources. Constantine
660-525: A grand adventus in the city which was met with jubilation. Maxentius' body was fished out of the Tiber and decapitated, and his head was paraded through the streets for all to see. After the ceremonies, the disembodied head was sent to Carthage, and Carthage offered no further resistance. Unlike his predecessors, Constantine neglected to make the trip to the Capitoline Hill and perform customary sacrifices at
792-541: A helmet emblazoned with the Chi Rho , and coins issued at Siscia in 317/318 repeat the image. The figure was otherwise rare and is uncommon in imperial iconography and propaganda before the 320s. It was not completely unknown, however, being an abbreviation of the Greek word chrēston (good), having previously appeared on the coins of Ptolemy III Euergetes in the 3rd century BC. Following Constantine, centuries of Christians invoked
924-553: A large donative pledge to any who would support him as emperor, most of Constantine's army remained loyal to their emperor, and Maximian was soon compelled to leave. When Constantine heard of the rebellion, he abandoned his campaign against the Franks and marched his army up the Rhine. At Cabillunum ( Chalon-sur-Saône ), he moved his troops onto waiting boats to row down the slow waters of the Saône to
1056-483: A long evening of drinking, Galerius granted the request. Constantine's later propaganda describes how he fled the court in the night, before Galerius could change his mind. He rode from post-house to post-house at high speed, hamstringing every horse in his wake. By the time Galerius awoke the following morning, Constantine had fled too far to be caught. Constantine joined his father in Gaul , at Bononia ( Boulogne ) before
1188-460: A military support, which Maxentius accepted. According to Eusebius, inter-regional travel became impossible, and there was military buildup everywhere. There was "not a place where people were not expecting the onset of hostilities every day". Constantine's advisers and generals cautioned against preemptive attack on Maxentius; even his soothsayers recommended against it, stating that the sacrifices had produced unfavourable omens. Constantine, with
1320-598: A near ubiquitous title or honour for various minor local deities, including the Lares Augusti of local communities, and obscure provincial deities such as the North African Marazgu Augustus . This extension of an Imperial honorific to major and minor deities of Rome and her provinces is considered a ground-level feature of Imperial cult , which continued until the official replacement of Rome's traditional religions by Christianity. The religious ambiguity of
1452-531: A palace complex in the northeastern part of the city. To the south of his palace, he ordered the construction of a large formal audience hall and a massive imperial bathhouse. He sponsored many building projects throughout Gaul during his tenure as emperor of the West, especially in Augustodunum ( Autun ) and Arelate ( Arles ). According to Lactantius, Constantine followed a tolerant policy towards Christianity, although he
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#17331060709921584-413: A reprinted edition with additional bibliography appeared. In the middle of the twentieth century there were repeated calls (including by Felix Jacoby , editor of a similar collection of Greek fragments, Fragmente der griechischen Historiker ) for an updated, revised edition of the fragments, aided by a sea change in the field of historiography and a critique of Peter's outdated perspective. The collection
1716-449: A result of a debilitating sickness taken in the winter of 304–305, announced his resignation. In a parallel ceremony in Milan , Maximian did the same. Lactantius states that Galerius manipulated the weakened Diocletian into resigning and forced him to accept Galerius' allies in the imperial succession. According to Lactantius, the crowd listening to Diocletian's resignation speech believed, until
1848-508: A revolting and horrifying sight." Galerius died soon after the edict's proclamation, destroying what little remained of the Tetrarchy. Maximinus mobilised against Licinius and seized Asia Minor . A hasty peace was signed on a boat in the middle of the Bosphorus . While Constantine toured Britain and Gaul, Maxentius prepared for war. He fortified northern Italy and strengthened his support in
1980-544: A spirit that left a deep impression on his followers, inspiring some to believe that he had some form of supernatural guidance, ignored all these cautions. Early in the spring of 312, Constantine crossed the Cottian Alps with a quarter of his army, a force numbering about 40,000. The first town his army encountered was Segusium ( Susa , Italy), a heavily fortified town that shut its gates to him. Constantine ordered his men to set fire to its gates and scale its walls. He took
2112-460: A temple to Aphrodite . Generations later there was the story that a divine vision led Constantine to this spot, and an angel no one else could see led him on a circuit of the new walls. The capital would often be compared to the 'old' Rome as Nova Roma Constantinopolitana , the "New Rome of Constantinople". Constantine was the first emperor to stop the persecution of Christians and to legalize Christianity, along with all other religions/cults in
2244-435: A tolerant and politically skilled man, Constantius advanced through the ranks, earning the governorship of Dalmatia from Emperor Diocletian, another of Aurelian's companions from Illyricum , in 284 or 285. Constantine's mother was Helena , a Greek woman of low social standing from Helenopolis of Bithynia . It is uncertain whether she was legally married to Constantius or merely his concubine . His main language
2376-415: A year, rejected it. Constantine sent Galerius an official notice of Constantius' death and his own acclamation. Along with the notice, he included a portrait of himself in the robes of an augustus. The portrait was wreathed in bay . He requested recognition as heir to his father's throne and passed off responsibility for his unlawful ascension on his army, claiming they had "forced it upon him". Galerius
2508-627: Is my Rome ". Sirmium and Thessalonica were also considered. Eventually, however, Constantine decided to work on the Greek city of Byzantium , which offered the advantage of having already been extensively rebuilt on Roman patterns of urbanism during the preceding century by Septimius Severus and Caracalla , who had already acknowledged its strategic importance. The city was thus founded in 324, dedicated on 11 May 330 and renamed Constantinopolis ("Constantine's City" or Constantinople in English). Special commemorative coins were issued in 330 to honor
2640-520: Is not known. His praenomen is variously given as Lucius , Marcus and Gaius . Whatever the case, praenomina had already disappeared from most public records by this time. He also adopted the name "Valerius", the nomen of emperor Diocletian , following his father's ascension as caesar . Constantine probably spent little time with his father who was an officer in the Roman army, part of Emperor Aurelian 's imperial bodyguard. Being described as
2772-461: Is somewhat doubtful, the fact is that he seems to have been far less open in his support of Christianity than Constantine. Therefore, Licinius was prone to see the Church as a force more loyal to Constantine than to the Imperial system in general, as the explanation offered by the Church historian Sozomen . This dubious arrangement eventually became a challenge to Constantine in the West, climaxing in
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#17331060709922904-513: Is the anonymous Origo Constantini , a work of uncertain date which focuses on military and political events to the neglect of cultural and religious matters. Lactantius ' De mortibus persecutorum , a political Christian pamphlet on the reigns of Diocletian and the Tetrarchy , provides valuable but tendentious detail on Constantine's predecessors and early life. The ecclesiastical histories of Socrates , Sozomen , and Theodoret describe
3036-573: Is venerated as a saint in Eastern Christianity , and he did much to push Christianity towards the mainstream of Roman culture. The age of Constantine marked a distinct epoch in the history of the Roman Empire and a pivotal moment in the transition from classical antiquity to the Middle Ages . He built a new imperial residence in the city of Byzantium and renamed it New Rome , later adopting
3168-564: The Origo gentis romanae . His monograph on Roman epistle writing, Der Brief in der römischen Litteratur (Leipzig, 1901), is considered a classic in the field. Constantine the Great Constantine I ( Latin : Flavius Valerius Constantinus ; 27 February c. 272 – 22 May 337), also known as Constantine the Great , was a Roman emperor from AD 306 to 337 and
3300-500: The Via Flaminia , allowing the weakness of Maxentius to draw his regime further into turmoil. Maxentius' support continued to weaken: at chariot races on 27 October, the crowd openly taunted Maxentius, shouting that Constantine was invincible. Maxentius, no longer certain that he would emerge from a siege victorious, built a temporary boat bridge across the Tiber in preparation for a field battle against Constantine. On 28 October 312,
3432-749: The Catholic Church and the Coptic Orthodox Church maintain that he was baptised by Pope Sylvester I . He played an influential role in the proclamation of the Edict of Milan in 313, which declared tolerance for Christianity in the Roman Empire. He convoked the First Council of Nicaea in 325 which produced the statement of Christian belief known as the Nicene Creed . The Church of the Holy Sepulchre
3564-497: The Church of the Holy Sepulchre and Old St. Peter's Basilica . In constructing the Old St. Peter's Basilica, Constantine went to great lengths to erect the basilica on top of St. Peter 's resting place, so much so that it even affected the design of the basilica, including the challenge of erecting it on the hill where St. Peter rested, making its complete construction time over 30 years from
3696-638: The Temple of Jupiter . However, he did visit the Senatorial Curia Julia , and he promised to restore its ancestral privileges and give it a secure role in his reformed government; there would be no revenge against Maxentius' supporters. In response, the Senate decreed him "title of the first name", which meant that his name would be listed first in all official documents, and they acclaimed him as "the greatest augustus". He issued decrees returning property that
3828-469: The de facto principle of dynastic succession by leaving the empire to his sons and other members of the Constantinian dynasty . His reputation flourished during the lifetime of his children and for centuries after his reign. The medieval church held him up as a paragon of virtue, while secular rulers invoked him as a prototype, a point of reference, and the symbol of imperial legitimacy and identity. At
3960-642: The fall of the Western Roman Empire , the title "Augustus" would later be incorporated into the style of the Holy Roman Emperor , a precedent set by Charlemagne who used the title serenissimus Augustus . As such, Augustus was sometimes also used as a name for men of aristocratic birth, especially in the lands of the Holy Roman Empire . It remains a given name for males. Some thirty years before its first association with Caesar's heir, augustus
4092-471: The province of Britannia . After his father's death in 306, Constantine was proclaimed as augustus (emperor) by his army at Eboracum ( York , England). He eventually emerged victorious in the civil wars against emperors Maxentius and Licinius to become the sole ruler of the Roman Empire by 324. Upon his ascension, Constantine enacted numerous reforms to strengthen the empire. He restructured
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4224-404: The 3rd century, new emperors were often acclaimed as Augusti by the army . Emperors also inherited Caesar (originally a family name) as part of their titles. The Tetrarchy instituted by Diocletian shared power between two Augusti and two Caesares . Nevertheless, as Augustus senior , Diocletian retained legislative power. Diocletian and his eventual successor after the civil wars of
4356-590: The Arian Philostorgius also survive, though their biases are no less firm. The epitomes of Aurelius Victor ( De Caesaribus ), Eutropius ( Breviarium ), Festus ( Breviarium ), and the anonymous author of the Epitome de Caesaribus offer compressed secular political and military histories of the period. Although not Christian, the epitomes paint a favourable image of Constantine but omit reference to Constantine's religious policies. The Panegyrici Latini ,
4488-781: The Bosphorus and appointed Martinian , his magister officiorum , as nominal augustus in the West, but Constantine next won the Battle of the Hellespont and finally the Battle of Chrysopolis on 18 September 324. Licinius and Martinian surrendered to Constantine at Nicomedia on the promise their lives would be spared: they were sent to live as private citizens in Thessalonica and Cappadocia respectively, but in 325 Constantine accused Licinius of plotting against him and had them both arrested and hanged; Licinius' son (the son of Constantine's half-sister)
4620-546: The Bosporus and invaded European territory. Licinius departed and eventually defeated Maximinus, gaining control over the entire eastern half of the Roman Empire. Relations between the two remaining emperors deteriorated, as Constantine suffered an assassination attempt at the hands of a character that Licinius wanted elevated to the rank of Caesar; Licinius, for his part, had Constantine's statues in Emona destroyed. In either 314 or 316,
4752-531: The Christian community by allowing it to elect Eusebius as bishop of Rome . Maxentius' rule was nevertheless insecure. His early support dissolved in the wake of heightened tax rates and depressed trade; riots broke out in Rome and Carthage ; and Domitius Alexander was able to briefly usurp his authority in Africa. By 312, he was a man barely tolerated, not one actively supported, even among Christian Italians. In
4884-557: The Danube with a Sarmatian captive to drop at Galerius' feet. It is uncertain how much these tales can be trusted. Constantine recognised the implicit danger in remaining at Galerius' court, where he was held as a virtual hostage. His career depended on being rescued by his father in the West. Constantius was quick to intervene. In the late spring or early summer of 305, Constantius requested leave for his son to help him campaign in Britain. After
5016-593: The East, and the military strategic importance of protecting the Danube from barbarian excursions and Asia from a hostile Persia in choosing his new capital as well as being able to monitor shipping traffic between the Black Sea and the Mediterranean. Licinius' defeat came to represent the defeat of a rival centre of pagan and Greek-speaking political activity in the East, as opposed to the Christian and Latin-speaking Rome, and it
5148-643: The East, from Nicomedia ( İzmit , Turkey). The division was merely pragmatic: the empire was called "indivisible" in official panegyric, and both emperors could move freely throughout the empire. In 288, Maximian appointed Constantius to serve as his praetorian prefect in Gaul . Constantius left Helena to marry Maximian's stepdaughter Theodora in 288 or 289. Diocletian divided the empire again in 293, appointing two caesars to rule over further subdivisions of East and West. Each would be subordinate to his respective augustus but would act with supreme authority in his assigned lands. This system would later be called
5280-496: The Goths and Sarmatians in 322, and on the Goths in 323, defeating and killing their leader Rausimod . In 320, Licinius allegedly reneged on the religious freedom promised by the Edict of Milan and began to oppress Christians anew, generally without bloodshed, but resorting to confiscations and sacking of Christian office-holders. Although this characterization of Licinius as anti-Christian
5412-413: The Great and his brother Valens , whom he raised to Augustus pari iure , ' Augustus without reserve' in 364, the concurrent Augusti of the eastern and western provinces were of equal standing. The last emperor proclaimed in the West, Romulus ( r. 475–476 ), adopted Augustus not only as a title, but also as a proper name (becoming Romulus Augustus pius felix Augustus ). After
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5544-622: The Holy Roman Empire was not rendered literally, but as allzeit Mehrer des Reiches ("ever Increaser of the Realm"), from the transitive verbal meaning of augere "to augment, increase". The Irish High King Brian Boru ( c. 941 – 1014) was described in the Annals of Ulster as ardrí Gaidhel Erenn & Gall & Bretan, August iartair tuaiscirt Eorpa uile (" High King of the Gaels of Ireland,
5676-501: The Italian turmoil; now, instead of giving Maxentius military aid, he sent his troops against Germanic tribes along the Rhine. In 308, he raided the territory of the Bructeri and made a bridge across the Rhine at Colonia Agrippinensium ( Cologne ). In 310, he marched to the northern Rhine and fought the Franks. When not campaigning, he toured his lands advertising his benevolence and supporting
5808-556: The Picts and securing his control in the northwestern dioceses. He completed the reconstruction of military bases begun under his father's rule, and he ordered the repair of the region's roadways. He then left for Augusta Treverorum ( Trier ) in Gaul, the Tetrarchic capital of the northwestern Roman Empire. The Franks learned of Constantine's acclamation and invaded Gaul across the lower Rhine over
5940-659: The Praetorian Guard and Imperial Horse Guard . The tombstones of the Imperial Horse Guard were ground up and used in a basilica on the Via Labicana , and their former base was redeveloped into the Lateran Basilica on 9 November 312—barely two weeks after Constantine captured the city. The Legio II Parthica was removed from Albano Laziale , and the remainder of Maxentius' armies were sent to do frontier duty on
6072-466: The Rhine. In the following years, Constantine gradually consolidated his military superiority over his rivals in the crumbling Tetrarchy. In 313, he met Licinius in Milan to secure their alliance by the marriage of Licinius and Constantine's half-sister Constantia. During this meeting, the emperors agreed on the so-called Edict of Milan , officially granting full tolerance to Christianity and all religions in
6204-533: The Roman Empire. In February 313, he met with Licinius in Milan and developed the Edict of Milan, which stated that Christians should be allowed to follow their faith without oppression. This removed penalties for professing Christianity, under which many had been martyred previously , and it returned confiscated Church property. The edict protected all religions from persecution, not only Christianity, allowing anyone to worship any deity that they chose. A similar edict had been issued in 311 by Galerius, senior emperor of
6336-509: The Roman monarchy 's last king Tarquinius Superbus by Lucius Junius Brutus in the late 6th century BC. The Imperial titles of imperator , caesar , and augustus were respectively rendered in Greek as autokratōr , kaisar , and augoustos (or sebastos ). The Greek titles were used in the Byzantine Empire until its extinction in 1453, although sebastos lost its imperial exclusivity and autokratōr along with basileus became
6468-515: The Romans and Franks) in 966), which would soon reach the medieval apex of its power. By the 12th century, the standard style of the Emperor had become Dei gratia Romanorum imperator semper Augustus (By the grace of God, Emperor of the Romans, ever Augustus) and would remain so until at least the 16th century. The formula of semper Augustus ("ever exalted") when translated into German in the late period of
6600-517: The Tetrarchy , Constantine the Great , both used the title semper Augustus ('ever Augustus'), which indicates a formalisation of the name in the late 3rd and early 4th centuries. From the reign of Constantine onwards, the Ancient Greek : Σεβαστός , romanized : Sebastós was abandoned as the translation of "Augustus" in favour of the homophone Ancient Greek: Αὔγουστος , romanized: aúgoustos . Beginning with Valentinian
6732-560: The Tetrarchy, which granted Christians the right to practise their religion but did not restore any property to them. The Edict of Milan included several clauses which stated that all confiscated churches would be returned, as well as other provisions for previously persecuted Christians. Some scholars think that Helena adopted Christianity as an adult, and according to Eusebius she was converted by Constantine, but other historians debate whether Constantine adopted his mother Helena's Christianity in his youth or whether he adopted it gradually over
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#17331060709926864-417: The Tetrarchy. Diocletian's first appointee for the office of Caesar was Constantius ; his second was Galerius , a native of Felix Romuliana . According to Lactantius , Galerius was a brutal, animalistic man. Although he shared the paganism of Rome's aristocracy, he seemed to them an alien figure, a semi-barbarian. On 1 March, Constantius was promoted to the office of Caesar, and dispatched to Gaul to fight
6996-535: The Veronese forces and Maxentius' praetorian prefect, was in a strong defensive position since the town was surrounded on three sides by the Adige . Constantine sent a small force north of the town in an attempt to cross the river unnoticed. Ruricius sent a large detachment to counter Constantine's expeditionary force but was defeated. Constantine's forces successfully surrounded the town and laid siege. Ruricius gave Constantine
7128-552: The beginning of the Renaissance , there were more critical appraisals of his reign with the rediscovery of anti-Constantinian sources. Trends in modern and recent scholarship have attempted to balance the extremes of previous scholarship. Constantine was a ruler of major importance and has always been a controversial figure. The fluctuations in his reputation reflect the nature of the ancient sources for his reign. These are abundant and detailed, but they have been strongly influenced by
7260-429: The cipher of Christ. Having this sign (☧), his troops stood to arms." Eusebius describes a vision that Constantine had while marching at midday in which "he saw with his own eyes the trophy of a cross of light in the heavens, above the sun, and bearing the inscription, In Hoc Signo Vinces " ("In this sign thou shalt conquer"). In Eusebius's account, Constantine had a dream the following night in which Christ appeared with
7392-413: The coinage of Constantine advertised Mars as his patron. From 310 on, Mars was replaced by Sol Invictus , a god conventionally identified with Apollo. There is little reason to believe that either the dynastic connection or the divine vision are anything other than fiction, but their proclamation strengthened Constantine's claims to legitimacy and increased his popularity among the citizens of Gaul. By
7524-482: The course of his life. Constantine possibly retained the title of pontifex maximus which emperors bore as heads of the ancient Roman religion until Gratian renounced the title. According to Christian writers, Constantine was over 40 when he finally declared himself a Christian, making it clear that he owed his successes to the protection of the Christian High God alone. Despite these declarations of being
7656-592: The date Constantine ordered it to be built. Augustus (title) Augustus (plural Augusti ; / ɔː ˈ ɡ ʌ s t ə s / aw- GUST -əs , Classical Latin : [au̯ˈɡʊstʊs] ; "majestic", "great" or "venerable") was the main title of the Roman emperors during Antiquity . It was given as both name and title to Gaius Julius Caesar Octavianus (often referred to simply as Augustus ) in 27 BC, marking his accession as Rome's first emperor. On his death, it became an official title of his successor, and
7788-430: The demotion and continued to style himself as augustus on his coinage, even as other members of the Tetrarchy referred to him as a caesar on theirs. Maximinus was frustrated that he had been passed over for promotion while the newcomer Licinius had been raised to the office of augustus and demanded that Galerius promote him. Galerius offered to call both Maximinus and Constantine "sons of the augusti", but neither accepted
7920-477: The divine will and may be considered a feature of the Roman imperial cult . In Rome's Greek -speaking provinces, "Augustus" was translated as Sebastos (Σεβαστός), or Hellenised as Augoustos ( Αὔγουστος ); these titles continued to be used in the Byzantine Empire until the Fall of Constantinople in 1453, although they gradually lost their imperial exclusivity in favour of Basileus and Autokrator . After
8052-487: The earlier rupture in their relations, Maxentius was eager to present himself as his father's devoted son after his death. He began minting coins with his father's deified image, proclaiming his desire to avenge Maximian's death. Constantine initially presented the suicide as an unfortunate family tragedy. By 311, however, he was spreading another version. According to this, after Constantine had pardoned him, Maximian planned to murder Constantine in his sleep. Fausta learned of
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#17331060709928184-408: The eastern front by the spring of 303, in time to witness the beginnings of Diocletian's " Great Persecution ", the most severe persecution of Christians in Roman history. In late 302, Diocletian and Galerius sent a messenger to the oracle of Apollo at Didyma with an inquiry about Christians. Constantine could recall his presence at the palace when the messenger returned and Diocletian accepted
8316-468: The ecclesiastic disputes of Constantine's later reign. Written during the reign of Theodosius II (r. 402–450), a century after Constantine's reign, these ecclesiastical historians obscure the events and theologies of the Constantinian period through misdirection, misrepresentation, and deliberate obscurity. The contemporary writings of the orthodox Christian Athanasius and the ecclesiastical history of
8448-400: The economy and the arts. His refusal to participate in the war increased his popularity among his people and strengthened his power base in the West. Maximian returned to Rome in the winter of 307–308 but soon fell out with his son. In early 308, after a failed attempt to usurp Maxentius' title, Maximian returned to Constantine's court. On 11 November 308, Galerius called a general council at
8580-518: The elder Emperor Maximian and needed a new source of legitimacy. In a speech delivered in Gaul on 25 July 310, the anonymous orator reveals a previously unknown dynastic connection to Claudius II , a 3rd-century emperor famed for defeating the Goths and restoring order to the empire. Breaking away from tetrarchic models, the speech emphasizes Constantine's ancestral prerogative to rule, rather than principles of imperial equality. The new ideology expressed in
8712-402: The emperor's traditional purple robes . Constantine accepted the decision, knowing that it would remove doubts as to his legitimacy. Constantine's share of the empire consisted of Britain, Gaul, and Spain, and he commanded one of the largest Roman armies which was stationed along the important Rhine frontier. He remained in Britain after his promotion to emperor, driving back the tribes of
8844-442: The empire. The document had special benefits for Christians, legalizing their religion and granting them restoration for all property seized during Diocletian's persecution. It repudiates past methods of religious coercion and used only general terms to refer to the divine sphere—"Divinity" and "Supreme Divinity", summa divinitas . The conference was cut short, however, when news reached Licinius that his rival Maximinus had crossed
8976-616: The event. The new city was protected by the relics of the True Cross , the Rod of Moses and other holy relics, though a cameo now at the Hermitage Museum also represented Constantine crowned by the tyche of the new city. The figures of old gods were either replaced or assimilated into a framework of Christian symbolism . Constantine built the new Church of the Holy Apostles on the site of
9108-402: The exclusive title of the emperor after the 8th century. Augusta was the female equivalent of Augustus , and had similar origins as an obscure descriptor with vaguely religious overtones. It was bestowed on some women of the Imperial dynasties, as an indicator of worldly power and influence and a status near to divinity. There was no qualification with higher prestige. The title or honorific
9240-402: The field bearing unfamiliar symbols on their standards and their shields. According to Lactantius "Constantine was directed in a dream to cause the heavenly sign to be delineated on the shields of his soldiers, and so to proceed to battle. He did as he had been commanded, and he marked on their shields the letter Χ, with a perpendicular line drawn through it and turned round thus at the top, being
9372-483: The first Roman emperor to convert to Christianity . He played a pivotal role in elevating the status of Christianity in Rome, decriminalizing Christian practice and ceasing Christian persecution in a period referred to as the Constantinian shift . This initiated the Christianization of the Roman Empire . Constantine is associated with the religiopolitical ideology known as Caesaropapism , which epitomizes
9504-420: The first charge. His horse guards and praetorians initially held their position, but they broke under the force of a Constantinian cavalry charge; they also broke ranks and fled to the river. Maxentius rode with them and attempted to cross the bridge of boats ( Ponte Milvio ), but he was pushed into the Tiber and drowned by the mass of his fleeing soldiers. Constantine entered Rome on 29 October 312 and staged
9636-635: The government, separating civil and military authorities. To combat inflation, he introduced the solidus , a new gold coin that became the standard for Byzantine and European currencies for more than a thousand years. The Roman army was reorganised to consist of mobile units ( comitatenses ), often around the Emperor, to serve on campaigns against external enemies or Roman rebels, and frontier-garrison troops ( limitanei ) which were capable of countering barbarian raids, but less and less capable, over time, of countering full-scale barbarian invasions . Constantine pursued successful campaigns against
9768-414: The great civil war of 324. Constantine's Christian eulogists present the war as a battle between Christianity and paganism; Licinius, aided by Gothic mercenaries, represented the past and ancient paganism, while Constantine and his Franks marched under the standard of the labarum . Outnumbered but fired by their zeal, Constantine's army emerged victorious in the Battle of Adrianople . Licinius fled across
9900-537: The honours that he had granted to leaders of the Senate were also invalidated. Constantine also attempted to remove Maxentius' influence on Rome's urban landscape. All structures built by him were rededicated to Constantine, including the Temple of Romulus and the Basilica of Maxentius . At the focal point of the basilica, a stone statue was erected of Constantine holding the Christian labarum in its hand. Its inscription bore
10032-404: The imperial court's demands for universal persecution. On 23 February 303, Diocletian ordered the destruction of Nicomedia' s new church, condemned its scriptures to the flames, and had its treasures seized. In the months that followed, churches and scriptures were destroyed, Christians were deprived of official ranks, and priests were imprisoned. It is unlikely that Constantine played any role in
10164-497: The imperial name. Subsequently, the title was bestowed by the Roman Senate . Until the reign of Marcus Aurelius ( r. 161–180 ), the title was unique to its bearer; in 161 Marcus Aurelius elevated Lucius Verus ( r. 161–169 ) to Augustus and both bore the title at the same time. The date of an emperor's investiture with the title Augustus was celebrated as the dies imperii and commemorated annually. From
10296-403: The last moment, that Diocletian would choose Constantine and Maxentius (Maximian's son) as his successors. It was not to be: Constantius and Galerius were promoted to augusti , while Severus and Maximinus , Galerius' nephew, were appointed their caesars respectively. Constantine and Maxentius were ignored. Some of the ancient sources detail plots that Galerius made on Constantine's life in
10428-518: The last will of her husband Augustus . From his death (14 AD) she was known as Julia Augusta , until her own death in AD 29. Charlemagne used the title serenissimus Augustus as a prefix to his titles. The style assumed by Otto I was imperator Augustus . The relative simplicity of the style and absence of any mention of Rome was in deference to Byzantium (although he would briefly use the title imperator Augustus Romanorum ac Francorum (Emperor-Augustus of
10560-518: The message which the statue illustrated: "By this sign, Constantine had freed Rome from the yoke of the tyrant." Constantine also sought to upstage Maxentius' achievements. For example, the Circus Maximus was redeveloped so that its seating capacity was 25 times larger than that of Maxentius' racing complex on the Via Appia . Maxentius' strongest military supporters were neutralised when he disbanded
10692-519: The middle of 310, Galerius had become too ill to involve himself in imperial politics. His final act survives: a letter to provincials posted in Nicomedia on 30 April 311, proclaiming an end to the persecutions, and the resumption of religious toleration. Eusebius maintains "divine providence [...] took action against the perpetrator of these crimes" and gives a graphic account of Galerius' demise: "Without warning suppurative inflammation broke out round
10824-408: The middle of his genitals, then a deep-seated fistula ulcer; these ate their way incurably into his innermost bowels. From them came a teeming indescribable mass of worms, and a sickening smell was given off, for the whole of his hulking body, thanks to over eating, had been transformed even before his illness into a huge lump of flabby fat, which then decomposed and presented those who came near it with
10956-455: The military city of Carnuntum ( Petronell-Carnuntum , Austria) to resolve the instability in the western provinces. In attendance were Diocletian, briefly returned from retirement, Galerius, and Maximian. Maximian was forced to abdicate again and Constantine was again demoted to caesar. Licinius , one of Galerius' old military companions, was appointed augustus in the western regions. The new system did not last long: Constantine refused to accept
11088-419: The miraculous or the supernatural when justifying or describing their warfare. Constantine deployed his own forces along the whole length of Maxentius' line. He ordered his cavalry to charge, and they broke Maxentius' cavalry. He then sent his infantry against Maxentius' infantry, pushing many into the Tiber where they were slaughtered and drowned. The battle was brief, and Maxentius' troops were broken before
11220-420: The months following Diocletian's abdication. They assert that Galerius assigned Constantine to lead an advance unit in a cavalry charge through a swamp on the middle Danube, made him enter into single combat with a lion, and attempted to kill him in hunts and wars. Constantine always emerged victorious: the lion emerged from the contest in a poorer condition than Constantine; Constantine returned to Nicomedia from
11352-581: The name Constantinople after himself, where it was located in modern Istanbul . It subsequently became the capital of the empire for more than a thousand years, the later Eastern Roman Empire often being referred to in English as the Byzantine Empire , a term never used by the Empire, invented by German historian Hieronymus Wolf . His more immediate political legacy was that he replaced Diocletian's Tetrarchy with
11484-431: The new title. By the spring of 310, Galerius was referring to both men as augusti. In 310, a dispossessed Maximian rebelled against Constantine while Constantine was away campaigning against the Franks. Maximian had been sent south to Arles with a contingent of Constantine's army, in preparation for any attacks by Maxentius in southern Gaul. He announced that Constantine was dead and took up the imperial purple. In spite of
11616-426: The north Italian plain sent Constantine embassies of congratulation for his victory. He moved on to Milan, where he was met with open gates and jubilant rejoicing. Constantine rested his army in Milan until mid-summer 312, when he moved on to Brixia ( Brescia ). Brescia's army was easily dispersed, and Constantine quickly advanced to Verona where a large Maxentian force was camped. Ruricius Pompeianus , general of
11748-591: The north without achieving great success. Constantius had become severely sick over the course of his reign and died on 25 July 306 in Eboracum . Before dying, he declared his support for raising Constantine to the rank of full Augustus. The Alamannic king Chrocus , a barbarian taken into service under Constantius, then proclaimed Constantine as augustus. The troops loyal to Constantius' memory followed him in acclamation. Gaul and Britain quickly accepted his rule; Hispania , which had been in his father's domain for less than
11880-470: The official chief executive. He was supreme commander of all Roman legions , and held tribunicia potestas ("tribunician power"). As a tribune, his person was inviolable ( sacrosanctitas ) and he had the right to veto any act or proposal by any magistrate within Rome. He was officially renamed Augustus by the Roman Senate on 16 January 27 BC – or perhaps the Senate ratified his own careful choice; "Romulus" had been considered, and rejected. This name
12012-522: The official propaganda of the period and are often one-sided; no contemporaneous histories or biographies dealing with his life and rule have survived. The nearest replacement is Eusebius 's Vita Constantini —a mixture of eulogy and hagiography written between 335 and circa 339 —that extols Constantine's moral and religious virtues. The Vita creates a contentiously positive image of Constantine, and modern historians have frequently challenged its reliability. The fullest secular life of Constantine
12144-512: The old family alliance between Maximian and Constantius and offer support to Maxentius' cause in Italy. Constantine accepted and married Fausta in Trier in summer 307. Constantine gave Maxentius his meagre support, offering Maxentius political recognition. Constantine remained aloof from the Italian conflict, however. Over the spring and summer of 307, he had left Gaul for Britain to avoid any involvement in
12276-485: The orator proclaims that Constantine experienced a divine vision of Apollo and Victory granting him laurel wreaths of health and a long reign. In the likeness of Apollo, Constantine recognised himself as the saving figure to whom would be granted "rule of the whole world", as the poet Virgil had once foretold. The oration's religious shift is paralleled by a similar shift in Constantine's coinage. In his early reign,
12408-540: The panegyrist the opportunity to comment favourably on the similarities between father and son, and Eusebius remarked that Constantine was a "renewal, as it were, in his own person, of his father's life and reign". Constantinian coinage, sculpture, and oratory also show a tendency for disdain towards the "barbarians" beyond the frontiers. He minted a coin issue after his victory over the Alemanni which depicts weeping and begging Alemannic tribesmen, "the Alemanni conquered" beneath
12540-412: The persecution. In his later writings, he attempted to present himself as an opponent of Diocletian's "sanguinary edicts" against the "Worshippers of God", but nothing indicates that he opposed it effectively at the time. Although no contemporary Christian challenged Constantine for his inaction during the persecutions, it remained a political liability throughout his life. On 1 May 305, Diocletian, as
12672-440: The phrase "Romans' rejoicing". There was little sympathy for these enemies; as his panegyrist declared, "It is a stupid clemency that spares the conquered foe." Following Galerius' recognition of Constantine as caesar, Constantine's portrait was brought to Rome, as was customary. Maxentius mocked the portrait's subject as the son of a harlot and lamented his own powerlessness. Maxentius, envious of Constantine's authority, seized
12804-475: The plot and warned Constantine, who put a eunuch in his own place in bed. Maximian was apprehended when he killed the eunuch and was offered suicide, which he accepted. Along with using propaganda, Constantine instituted a damnatio memoriae on Maximian, destroying all inscriptions referring to him and eliminating any public work bearing his image. The death of Maximian required a shift in Constantine's public image. He could no longer rely on his connection to
12936-488: The quicker waters of the Rhone . He disembarked at Lugdunum ( Lyon ). Maximian fled to Massilia ( Marseille ), a town better able to withstand a long siege than Arles. It made little difference, however, as loyal citizens opened the rear gates to Constantine. Maximian was captured and reproved for his crimes. Constantine granted some clemency but strongly encouraged his suicide. In July 310, Maximian hanged himself . In spite of
13068-512: The rebels Carausius and Allectus . In spite of meritocratic overtones, the Tetrarchy retained vestiges of hereditary privilege, and Constantine became the prime candidate for future appointment as Caesar as soon as his father took the position. Constantine went to the court of Diocletian, where he lived as his father's heir presumptive . Constantine received a formal education at Diocletian's court, where he learned Latin literature, Greek, and philosophy. The cultural environment in Nicomedia
13200-639: The reign of Constantine the Great as marking the end of Roman historiography (with the exception of a sixth-century excerpt preserved in Jordanes ); history after, he said, "went over to the Christians and the Greeks". The first volume appeared in Leipzig in 1870, with a second edition (revised by Peter himself) appearing in Leipzig in 1914 (and reprinted Stuttgart, 1967); the second volume appeared in Leipzig in 1906. In 1993,
13332-451: The same heavenly sign and told him to make an army standard in the form of the labarum . Eusebius is vague about when and where these events took place, but it enters his narrative before the war begins against Maxentius. He describes the sign as Chi (Χ) traversed by Rho (Ρ) to form ☧, representing the first two letters of the Greek word ΧΡΙΣΤΟΣ (Christos). A medallion was issued at Ticinum in 315 which shows Constantine wearing
13464-550: The same type of war he had waged against Severus and Galerius: he occupied Rome and prepared for a siege. He still controlled Rome's Praetorian Guard , was well-stocked with African grain, and was surrounded on all sides by the seemingly impregnable Aurelian Walls . He ordered all bridges across the Tiber cut, reportedly on the counsel of the gods, and left the rest of central Italy undefended; Constantine secured that region's support without challenge. Constantine progressed slowly along
13596-484: The sixth anniversary of his reign, he approached the keepers of the Sibylline Books for guidance. The keepers prophesied that, on that very day, "the enemy of the Romans" would die. Maxentius advanced north to meet Constantine in battle. Maxentius' forces were still twice the size of Constantine's, and he organised them in long lines facing the battle plain with their backs to the river. Constantine's army arrived on
13728-422: The slip and returned with a larger force to oppose Constantine. Constantine refused to let up on the siege and sent only a small force to oppose him. In the desperately fought encounter that followed, Ruricius was killed and his army destroyed. Verona surrendered soon afterwards, followed by Aquileia , Mutina ( Modena ), and Ravenna . The road to Rome was now wide open to Constantine. Maxentius prepared for
13860-434: The speech made Galerius and Maximian irrelevant to Constantine's right to rule. Indeed, the orator emphasizes ancestry to the exclusion of all other factors: "No chance agreement of men, nor some unexpected consequence of favour, made you emperor," the orator declares to Constantine. The oration also moves away from the religious ideology of the Tetrarchy, with its focus on twin dynasties of Jupiter and Hercules . Instead,
13992-568: The summer of 305. From Bononia, they crossed the English Channel to Britain and made their way to Eboracum ( York ), capital of the province of Britannia Secunda and home to a large military base. Constantine was able to spend a year in northern Britain at his father's side, campaigning against the Picts beyond Hadrian's Wall in the summer and autumn. Constantius' campaign, like that of Septimius Severus before it, probably advanced far into
14124-581: The summer of 311, Maxentius mobilised against Constantine while Licinius was occupied with affairs in the East. He declared war on Constantine, vowing to avenge his father's "murder". To prevent Maxentius from forming an alliance against him with Licinius, Constantine forged his own alliance with Licinius over the winter of 311–312 and offered him his sister Constantia in marriage. Maximinus considered Constantine's arrangement with Licinius an affront to his authority. In response, he sent ambassadors to Rome, offering political recognition to Maxentius in exchange for
14256-415: The title allowed for this kind of deification throughout the empire as subjects – beginning from Asia and Bithynia – adopted the worship of the genius or soul of Augustus, establishing a ruler-cult. The first emperor bequeathed the title Augustus to his adopted heir and successor Tiberius in his will. From then on, though it conferred no specific legal powers, Augustus was a titular element of
14388-576: The title of emperor on 28 October 306. Galerius refused to recognize him but failed to unseat him. Severus was sent against Maxentius in April 307, but during the campaign, Severus' armies, previously under command of Maxentius' father Maximian, defected, and Severus was seized and imprisoned. Maximian, brought out of retirement by his son's rebellion, left for Gaul to confer with Constantine. He offered to marry his daughter Fausta to Constantine and elevate him to augustan rank. In return, Constantine would reaffirm
14520-667: The town quickly. Constantine ordered his troops not to loot the town and advanced into northern Italy. At the approach to the west of the important city of Augusta Taurinorum ( Turin , Italy), Constantine met a large force of heavily armed Maxentian cavalry. In the ensuing Battle of Turin Constantine's army encircled Maxentius' cavalry, flanked them with his own cavalry, and dismounted them with blows from his soldiers' iron-tipped clubs. Constantine's armies emerged victorious. Turin refused to give refuge to Maxentius' retreating forces, opening its gates to Constantine instead. Other cities of
14652-732: The tribes on the Roman frontiers —such as the Franks , the Alemanni , the Goths , and the Sarmatians —and resettled territories abandoned by his predecessors during the Crisis of the Third Century with citizens of Roman culture. Although Constantine lived much of his life as a pagan and later as a catechumen , he began to favour Christianity beginning in 312, finally becoming a Christian and being baptised by Eusebius of Nicomedia , an Arian bishop, although
14784-445: The two augusti fought against one another at the Battle of Cibalae , with Constantine being victorious. They clashed again at the Battle of Mardia in 317 and agreed to a settlement in which Constantine's sons Crispus and Constantine II , and Licinius' son Licinius Junior were made caesars . After this arrangement, Constantine ruled the dioceses of Pannonia and Macedonia and took residence at Sirmium , whence he could wage war on
14916-559: The unity of church and state. He founded the city of Constantinople and made it the capital of the Empire, which remained so for over a millennium. Born in Naissus , in Dardania within Moesia Superior (now Niš , Serbia), Constantine was the son of Flavius Constantius , a Roman army officer of Illyrian origin who had been one of the four rulers of the Tetrarchy . His mother, Helena ,
15048-661: The victory over the Sasanian Empire in the Byzantine–Sasanian War of 602–628 , the 7th century final phase of the Roman–Persian Wars , the emperor Heraclius introduced the Ancient Greek: βασιλεύς , romanized: basileús , lit. 'monarch' and the title Augoustos lost importance. Until Heraclius's 629 reforms, royal titles had been eschewed in Rome since the legendary overthrow of
15180-401: The winter of 306–307. He drove them back beyond the Rhine and captured kings Ascaric and Merogais ; the kings and their soldiers were fed to the beasts of Trier Amphitheater in the adventus (arrival) celebrations which followed. Constantine began a major expansion of Trier. He strengthened the circuit wall around the city with military towers and fortified gates, and he began building
15312-487: Was Latin , and during his public speeches he needed Greek translators. In April 286, Diocletian declared Maximian , another colleague from Illyricum, his co-emperor. Each emperor would have his own court, his own military and administrative faculties, and each would rule with a separate praetorian prefect as chief lieutenant. Maximian ruled in the West, from his capitals at Mediolanum ( Milan , Italy) or Augusta Treverorum ( Trier , Germany), while Diocletian ruled in
15444-530: Was a Greek woman of low birth, probably from Asia Minor in modern Turkey . Later canonised as a saint , she is traditionally credited for the conversion of her son. Constantine served with distinction under the Roman emperors Diocletian and Galerius . He began his career by campaigning in the eastern provinces (against the Persians ) before being recalled in the west (in AD ;305) to fight alongside his father in
15576-448: Was an obscure honorific with religious associations. One early context (58 BC) associates it with provincial Lares (Roman household gods). In Latin poetry and prose, it signifies the further elevation or augmentation of what is already sacred or religious. Some Roman sources connected it to augury , and Rome was said to have been founded with the "august augury" of Romulus. The first true Roman known as "Augustus" (and first counted as
15708-564: Was born on 27 February, c. AD 272 in the city of Naissus , a time where the unity of the Empire was threatened by the breakaway wars of the Palmyrene Empire . The city—which is modern day Niš in Serbia —was located in Dardania within Moesia Superior . His father was Flavius Constantius an Illyrian who was born in the same region, and a native of the province of Moesia. His original full name, as well as that of his father,
15840-637: Was built on his orders at the claimed site of Jesus' tomb in Jerusalem and was deemed the holiest place in all of Christendom . The papal claim to temporal power in the High Middle Ages was based on the fabricated Donation of Constantine . He has historically been referred to as the "First Christian Emperor", but while he did favour the Christian Church, some modern scholars debate his beliefs and even his comprehension of Christianity. Nevertheless, he
15972-515: Was deemed too blatant as it would make Octavius the second founder of Rome. So his official renaming in a form vaguely associated with a traditionally Republican religiosity, but unprecedented as a cognomen , may have served to show that he owed his position to the approval of Rome and its gods, and possibly his own unique, elevated, "godlike" nature and talents. His full and official title thus became Imperator Caesar Divi Filius Augustus . Augustus' religious reforms extended or affirmed Augusti as
16104-404: Was killed in 326. Thus Constantine became the sole emperor of the Roman Empire. Diocletian had chosen Nicomedia in the East as his capital during the Tetrarchy —not far from Byzantium, well situated to defend Thrace, Asia, and Egypt, all of which had required his military attention. Constantine had recognised the shift of the empire from the remote and depopulated West to the richer cities of
16236-439: Was lost under Maxentius, recalling political exiles, and releasing Maxentius' imprisoned opponents. An extensive propaganda campaign followed, during which Maxentius' image was purged from all public places. He was written up as a "tyrant" and set against an idealised image of Constantine the "liberator". Eusebius is the best representative of this strand of Constantinian propaganda. Maxentius' rescripts were declared invalid, and
16368-685: Was nonetheless a prominent member of the court: he fought for Diocletian and Galerius in Asia and served in a variety of tribunates ; he campaigned against barbarians on the Danube in 296 and fought the Persians under Diocletian in Syria in 297, as well as under Galerius in Mesopotamia in 298–299. By late 305, he had become a tribune of the first order, a tribunus ordinis primi . Constantine had returned to Nicomedia from
16500-528: Was not yet a Christian. He probably judged it a more sensible policy than open persecution and a way to distinguish himself from the "great persecutor" Galerius. He decreed a formal end to persecution and returned to Christians all that they had lost during them. Constantine was largely untried and had a hint of illegitimacy about him; he relied on his father's reputation in his early propaganda, which gave as much coverage to his father's deeds as to his. His military skill and building projects, however, soon gave
16632-469: Was open, fluid, and socially mobile; in it, Constantine could mix with intellectuals both pagan and Christian. He may have attended the lectures of Lactantius, a Christian scholar of Latin in the city. Because Diocletian did not completely trust Constantius—none of the Tetrarchs fully trusted their colleagues—Constantine was held as something of a hostage, a tool to ensure Constantius' best behavior. Constantine
16764-476: Was proposed that a new Eastern capital should represent the integration of the East into the Roman Empire as a whole, as a centre of learning, prosperity, and cultural preservation for the whole of the Eastern Roman Empire. Among the various locations proposed for this alternative capital, Constantine appears to have toyed earlier with Serdica (present-day Sofia ), as he was reported saying that " Serdica
16896-445: Was put into a fury by the message; he almost set the portrait and messenger on fire. His advisers calmed him and argued that outright denial of Constantine's claims would mean certain war. Galerius was compelled to compromise: he granted Constantine the title "caesar" rather than "augustus" (the latter office went to Severus instead). Wishing to make it clear that he alone gave Constantine legitimacy, Galerius personally sent Constantine
17028-410: Was shared by state goddesses associated with the Imperial regime's generosity and provision, such as Ceres , Bona Dea , Juno , Minerva , and Ops , and by local or minor goddesses around the empire. Other personifications perceived as essentially female and given the title Augusta include Pax (peace) and Victoria (victory). The first woman to receive the honorific Augusta was Livia Drusilla , by
17160-516: Was so used by all emperors thereafter. The feminine form Augusta was used for Roman empresses and other female members of the imperial family. The masculine and feminine forms originated in the time of the Roman Republic , in connection with things considered divine or sacred in traditional Roman religion . Their use as titles for major and minor Roman deities of the Empire associated the imperial system and family with traditional Roman virtues and
17292-527: Was supplanted by Martine Chassignet's L'Annalistique romaine , the third and final volume of which was published in 2004. Other editors who have taken up the project of publishing the important fragments of Roman literary tradition include Courtney ( Fragmentary Latin Poets ) and Malcovati ( Oratorum Romanorum Fragmenta ). Hermann Peter was also an editor of the Augustan History and an editor of and expert on
17424-409: Was unique and extraordinary. He had ended Rome's prolonged and bloody civil war with his victory at Actium , and established a lasting peace. He was self-evidently favoured by the gods. As princeps senatus ("first man or head of the senate") he presided at senatorial meetings. He was pontifex maximus , chief priest of Roman state religion. He held consular imperium , with authority equal to
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