Constantius II was Roman emperor from 337 to 361. His reign saw constant warfare on the borders against the Sasanian Empire and Germanic peoples, while internally the Roman Empire went through repeated civil wars, court intrigues, and usurpations. His religious policies inflamed domestic conflicts that would continue after his death.
Flavius Julius Constans, 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.
The 300s decade ran from January 1, 300, to December 31, 309.
The 410s decade ran from January 1, 410, to December 31, 419.
The 330s decade ran from January 1, 330, to December 31, 339.
The 340s decade ran from January 1, 340, to December 31, 349.
The 350s decade ran from January 1, 350, to December 31, 359.
The 260s decade ran from January 1, 260, to December 31, 269.
Year 354 (CCCLIV) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Constantius. The denomination 354 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 352 (CCCLII) was a leap year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Decentius and Paulus. The denomination 352 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 351 (CCCLI) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Magnentius and Gaiso. The denomination 351 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 340 (CCCXL) was a leap year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Acindynus and Valerius. The denomination 340 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Magnus Magnentius was a Roman general and usurper against Constantius II. Of Germanic descent, Magnentius served with distinction in Gaul under the emperor Constans. On 18 January 350 Magnentius was acclaimed Augustus. Quickly killing the unpopular Constans, Magnentius gained control over most of the Western Empire. The Eastern emperor Constantius II, the brother of Constans, refused to acknowledge Magnentius' legitimacy and led a successful campaign against Magnentius. Ultimately, Magnentius' forces were scattered after the Battle of Mons Seleucus, and he died by suicide on 10 August 353.
Vetranio was briefly an imperial usurper and emperor in the Roman Empire in 350, during which time he controlled Illyricum between the rival emperors Magnus Magnentius and Constantius II, eventually capitulating to the latter.
Nepotianus, sometimes known in English as Nepotian, was a member of the Constantinian dynasty who reigned as a short-lived usurper of the Roman Empire. He ruled the city of Rome for twenty-eight days, before being killed by his rival usurper Magnentius' general Marcellinus.
The Battle of Mursa was fought on 28 September 351 between the eastern Roman armies led by the Emperor Constantius II and the western forces supporting the usurper Magnentius. It took place at Mursa, near the Via Militaris in the province of Pannonia. The battle, one of the bloodiest in Roman history, was a pyrrhic victory for Constantius.
Marcellinus was a Roman Empire officer under Roman Emperor Constans and usurper Magnentius.
Eutropia was the daughter of Roman emperor Constantius Chlorus and Flavia Maximiana Theodora, and therefore half-sister of Constantine the Great. She was mother of the short-lived imperial pretender Nepotianus, and was probably killed alongside him by the rival usurper Magnentius in 350.
The Roman civil war of 350–353 AD was a war fought between the Roman emperor Constantius II and the usurper Magnentius.
Flavius Romulus was a Roman politician, appointed to the high position of consul in 343. The historian Benet Salway tentatively identified him with Romulus, the senior army officer who fought and died for the usurper Magnentius at the Battle of Mursa in 351.
