The was fought in
351 between a Roman army led by
Constantius II and the forces of the usurper
Magnentius .
Before the battle, Constantius set Flavius Philippus, his Eastern
Praetorian Prefect , to negotiate with Magnentius, requiring the usurper withdrawal to Gaul. After this inconclusive mission, one of Magnentius commanders, Silvanus, and his me deserted to Constantius.
The battle was one of the bloodiest in Roman history. According to
Zonaras (xiii 8.17), Magnentius lost two-thirds of his troops, Constantius half of his army, for a total of 54 thousand soldiers in an age in which the Empire had many external enemies.
The battle had also a religious meaning. Magnentius had restored some rights for the pagans, while Constantius even left the battlefield to preach on the tomb of nearby martyr. The bishop of Mursa, Valens, referred that an angel had reported to him the news of the victory.
Magnentius would suffer another, decisive defeat two years later at
Mons Seleucus .
- Cameron, Averil, and Peter Garnsey ''ed.'', ''The Cambridge Ancient History'', Cambridge University Press, 1988, Vol XIII, p. 20.
- "Mursa, Battle of", ''Encyclopædia Britannica'', from Encyclopædia Britannica Premium Service. February 2, 2006 .
