4th-century Roman consuls

Roman emperor from 306 to 337 and first to convert to Christianity (272–337)

Diocletian ( ; ; ; 242/245 – 311/312), nicknamed Jovius, was Roman emperor from 284 until his abdication in 305. He was born Diocles to a family of low status in the Roman province of Dalmatia. As with other Illyrian soldiers of the period, Diocles rose through the ranks of the military early in his career, serving under Aurelian and Probus, and eventually becoming a cavalry commander for the army of Emperor Carus. After the deaths of Carus and his son Numerian on a campaign in Persia, Diocles was proclaimed emperor by the troops, taking the name "Diocletianus". The title was also claimed by C

last Pagan Roman emperor, reigned 361 to 363

Roman emperor from 379 to 395

Honorius (; 9 September 384 – 15 August 423) was Roman emperor from 393 to 423. He was the younger son of emperor Theodosius I and his first wife Aelia Flaccilla. After the death of Theodosius in 395, Honorius, under the regency of Stilicho, ruled the western half of the empire while his brother Arcadius ruled the eastern half. His reign over the Western Roman Empire was precarious and chaotic. In 410, Rome was sacked for the first time since the Battle of the Allia almost 800 years prior.

Roman emperor (250-306)

Roman emperor (317-361)

Roman emperor from 364 to 375

Arcadius ( ; 377 – 1 May 408) was Roman emperor from 383 to his death in 408. He was the eldest son of the Augustus Theodosius I () and his first wife Aelia Flaccilla, and the brother of Honorius (). Arcadius ruled the eastern half of the empire from 395, when their father died, while Honorius ruled the west. In his time, he was seen as a weak ruler dominated by a series of powerful ministers and by his wife, Aelia Eudoxia.

Valens (; ; 328 – 9 August 378) was Roman emperor from 364 to 378. Following a largely unremarkable military career, he was named co-emperor by his elder brother Valentinian I, who gave him the eastern half of the Roman Empire to rule. In 378, Valens was defeated and killed at the Battle of Adrianople against the invading Goths, which astonished contemporaries and marked the beginning of barbarian encroachment into Roman territory.

Valerius Licinianus Licinius (; Greek: Λικίνιος; c. 265 – 325) was Roman emperor from 308 to 324. For most of his reign, he was the colleague and rival of Constantine I, with whom he co-authored the Edict of Milan that granted official toleration to Christians in the Roman Empire. He was finally defeated at the Battle of Chrysopolis (AD 324), and was later executed on the orders of Constantine.

Roman emperor (316-340)

Maximian (; ), nicknamed Herculius, was Roman emperor from 286 to 305. He was Caesar from 285 to 286, then Augustus from 286 to 305. He shared the latter title with his co-emperor and superior, Diocletian, whose political brain complemented Maximian's military brawn. Maximian established his residence at Trier but spent most of his time on campaign. In late 285, he suppressed rebels in Gaul known as the Bagaudae. From 285 to 288, he fought against Germanic tribes along the Rhine frontier. Together with Diocletian, he launched a scorched earth campaign deep into Alamannic territory in 288, refo

Galerius Valerius Maximianus (; Greek: Γαλέριος; 258 – May 311) was Roman emperor from 305 to 311. He participated in the system of government later known as the Tetrarchy, first acting as caesar under Emperor Diocletian. In this period Galerius obtained victory warring against the Persian Sasanian Empire, defeating Narseh at the battle of Satala in 298 and possibly sacking the Sasanian capital of Ctesiphon in 299. He also campaigned across the Danube against the Carpi, defeating them in 297 and 300. Galerius was promoted to augustus upon the abdication of Diocletian in 305, but had to contend

Roman emperor from 363 to 364

Marcus Aurelius Valerius Maxentius ( 283 – 28 October 312) was a Roman emperor from 306 until his death in 312. Despite ruling in Italy and North Africa, and having the recognition of the Senate in Rome, he was not recognized as a legitimate emperor by his fellow emperors.

Decimus Magnus Ausonius (; ) was a Roman poet and teacher of rhetoric from Burdigala, Aquitaine (now Bordeaux, France). For a time, he was tutor to the future Emperor Gratian, who afterwards bestowed the consulship on him. His best-known poems are Mosella, a description of the River Moselle, and Ephemeris, an account of a typical day in his life. His many other verses show his concern for his family, friends, teachers and circle of well-to-do acquaintances and his delight in the technical handling of meter.

Gratian (; ; 18 April 359 – 25 August 383) was emperor of the Western Roman Empire from 367 to 383. The eldest son of Valentinian I, Gratian was raised to the rank of Augustus as a child and inherited the West after his father's death in 375. He nominally shared the government with his infant half-brother Valentinian II, who was also acclaimed emperor in Pannonia on Valentinian's death. The East was ruled by his uncle Valens, who was later succeeded by Theodosius I.

Flavius Julius Constans ( 323 – 350), also called Constans I, was Roman emperor from 337 to 350. He held the imperial rank of caesar from 333, and was the youngest son of Constantine the Great.

early 4th century Roman emperor

Roman emperor from 310 to 313

Roman emperor from 375 to 392

Stilicho (; – 22 August 408) was a military commander in the Roman army who, for a time, became the most powerful man in the Western Roman Empire. He was partly of Vandal origins and married to Serena, the niece of emperor Theodosius I. He became guardian for the underage Honorius. After years of struggle against barbarian and Roman enemies, political and military disasters finally allowed his enemies in the court of Honorius to remove him from power. His fall culminated in his arrest and execution in 408.

4th century Roman historian and official

late 4th-century Roman emperor of Britain and usurper of the West

Magnus Magnentius ( 303 – 10 August 353) was a Roman general and usurper against Constantius II. Of Germanic descent, Magnentius served with distinction in Gaul, where the army chose him as a replacement for the unpopular emperor Constans. Acclaimed Augustus on 18 January 350, Magnentius quickly killed Constans and gained control over most of the Western Empire. The Eastern emperor Constantius II, brother of Constans, refused to acknowledge Magnentius's legitimacy, leading to three years of civil war. Decisively defeated at the Battle of Mons Seleucus, Magnentius killed himself on 10 August 35

Eugenius (died 6 September 394) was a Western Roman emperor from 392 to 394, unrecognized by the Eastern Roman emperor Theodosius I. While Christian himself, Eugenius capitalized on the discontent in the West caused by Theodosius' religious policies targeting pagans. He renovated the pagan Temple of Venus and Roma and restored the Altar of Victory after continued petitions from the Roman Senate. Eugenius replaced Theodosius' administrators with men loyal to him. This included pagans, reviving the pagan cause. His army fought the army of Theodosius at the Battle of the Frigidus, where he was ca

consul of the Roman Empire 391, orator (340-402)

Flavius Julius Crispus (; 300 – 326) was the eldest son of the Roman emperor Constantine I, as well as his junior colleague (caesar) from March 317 until his execution by his father in 326. The grandson of the augustus Constantius I, Crispus was the elder half-brother of the future augustus Constantine II and became co-caesar with him and with his cousin Licinius II at Serdica, part of the settlement ending the Cibalensean War between Constantine and his father's rival Licinius I. Crispus ruled from Augusta Treverorum (Trier) in Roman Gaul between 318 and 323 and defeated the navy of Licinius

Junior Roman emperor from 351 to 354

son of Roman Emperor Constantius Chlorus (died 337)

brother of Constantine the Great

chamberlain at the Eastern Roman imperial court and consul in 399 AD

Roman general and consul 392

Roman caesar from 317 to 324

Magnus Decentius (died 18 August 353) was caesar of the Western Roman Empire from 350 to 353, under his brother Magnentius.

Flavius Richomeres or Richomer, Ricomer (died 393) was a Frank who lived in the late 4th century. He took service in the Roman army and made a career as comes, magister militum, and consul. He was an uncle of the general Arbogastes. He is possibly to be identified with the Richomeres who married Ascyla, whose son Theodemer later became king of the Franks.

Flavius Bauto (died c. 385) was a Romanised Frank who served as a magister militum of the Roman Empire and was a powerful figure in the court of emperor Valentinian II.

consul of the Roman Empire (334-394)

high official of the Roman Empire

Roman military

Roman politician, consul in 362 AD

4th century Roman consul, scholar and author

Roman consul 335 AD

brother of Roman empress Aelia Flaccilla

Flavius Arbitio (fl. 354–366 AD) was a Roman general and Consul who lived in the middle of the 4th century AD.

consul of the Roman Empire

Roman army master

Imperial Roman prince and consul (366-369)

Flavius Nevitta (fl. 357-363) was a military leader and official in the Roman Empire. His career is closely linked to that of Flavius Claudius Julianus, the Emperor Julian. He was master of the cavalry and in 362 served as consul.

general and consul of the Roman empire

Roman general, consul 367

politician

Roman praetorian prefect and consul

politician

Flavius Promotus was a Roman general who served under Theodosius I until his death in 391 AD. In 386 he had a command in Africa, and was magister peditum for Thrace. In 388 he was made magister equitum, and the following year was consul. He was killed in an ambush organised by Rufinus, a rival for Theodosius' favour.

politician

consul of the Roman Empire (328-388)

Roman consul 400 AD

Roman politician, consul 317 AD