Magnentius Non-dynastic Born: 18 January 350 Died: 11 August 353 Regnal titles Preceded by Constans Roman Emperor 350–353 Served alongside: Constantius II and Decentius as appointed Caesar (junior emperor) Succeeded by Constantius II Political offices Preceded by Sergius, Nigrinianus Consul of the Roman Empire 351 with Gaiso Succeeded by Flavius Magnus Decentius Caesar, Paulus , Flavius Iulius Constantius Augustus V, Flavius Claudius Constantius Caesar