355Aug, 11
Claudius Silvanus, accused of treason, proclaims himself Roman Emperor against Constantius II.
Silvanus (died 7 September 355) was a Roman general of Frankish descent, usurper in Gaul against Emperor Constantius II for 28 days in AD 355.
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Events on 355
- 6Nov
Constantius II
Roman emperor Constantius II promotes his cousin Julian to the rank of Caesar, entrusting him with the government of the Prefecture of the Gauls.