Magnentius

Flavius Magnus Magnentius (303–August 11, 353) was a Roman usurper (January 18, 350 – August 11, 353).Born in Samarobriva (Amiens), Gaul, Magnentius was the commander of the Herculians and Iovians, the imperial guard units (Zosimus, ii.58). When the army grew dissatisfied with the behaviour of Roman Emperor Constans, it elevated Magnentius at Autun on January 18, 350. Constans was abandoned by all except a handful of retainers, and he was slain shortly afterwards by a troop of light cavalry near the Pyrenees.
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