Flavius Julius Constans, sometimes 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.
Constantine II was Roman emperor from 337 to 340. Son of Constantine the Great and co-emperor alongside his brothers, his attempt to exert his perceived rights of primogeniture led to his death in a failed invasion of Italy in 340.
The 300s decade ran from January 1, 300, to December 31, 309.
The 400s decade ran from January 1, 400, to December 31, 409.
The 310s decade ran from January 1, 310, to December 31, 319.
The 320s decade ran from January 1, 320, to December 31, 329.
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.
The 280's decade ran from January 1, 280, to December 31, 289.
Year 350 (CCCL) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Sergius and Nigrinianus. The denomination 350 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 339 (CCCXXXIX) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Claudius. The denomination 339 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 337 (CCCXXXVII) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Felicianus and Titianus. The denomination 337 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 335 (CCCXXXV) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Albinus. The denomination 335 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 320 (CCCXX) was a leap year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantinus and Constantinus. The denomination 320 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 from 350 to 353. Of Germanic descent, Magnentius served with distinction in Gaul under the Western 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 in the Roman civil war of 350–353. Ultimately, Magnentius' forces were scattered after the Battle of Mons Seleucus, and he committed suicide on 11 August 353.
Constans II was caesar or heir apparent to his father Emperor Constantine III from 407 to 409 and co-emperor with Constantine and the Western Roman Emperor Honorius from 409 until his death. Constans was a monk prior to his father being acclaimed emperor by the army in Britain in early 407. Constans was summoned to the new imperial court, in Gaul, appointed to the position of Caesar and swiftly married so that a dynasty could be founded. In Hispania, Honorius's relatives rose in 408 and expelled Constantine's administration. An army under the generals Constans and Gerontius was sent to deal with this and Constantine's authority was re-established. Honorius acknowledged Constantine as co-emperor in early 409 and Constantine immediately raised Constans to the position of co-emperor, theoretically equal in rank to Honorius as well as to Constantine. Later in 409 Gerontius rebelled, proclaimed his client Maximus emperor and incited barbarian groups in Gaul to rise up. Constans was sent to quash the revolt, but was defeated and withdrew to Arles. In 410, Constans was sent to Hispania again. Gerontius had strengthened his army with barbarians and defeated Constans; the latter withdrew north and was defeated again and killed at Vienne early in 411. Gerontius then besieged Constantine in Arles.
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.
