Constantius II
Constantius II was the second son of Constantine the Great. He was elevated to the imperial rank of Caesar in AD 324 and became Augustus, together with his brothers, Constantine II and Constans in AD 337 and received the eastern territories of the Empire. In AD 353, Constantius II marched against the usurper Magnentius and ultimately defeated him. Constantius II died of fever on the way back to face Julian, who proclaimed himself Augustus, in battle in AD 361.