War of Heraclianus
Heraclianus supported the emperor when Priscus Attalus, with the help of the Visigoths of King Alaric I, revolted in Italy against Honorius, whose seat of power was in Ravenna, in 409.Heraclianus's first act in the conflict was to stop grain deliveries to the city of Rome, as he had previously done successfully against the usurper Priscus Attalus.In the capital Ravenna, Honorius responded to this threat by declaring Heraclianus and his supporters enemies of the state and sentencing them to death by edict on July 7, 412.According to Orosius and Marcellinus Comes, Heraclianus arrived in Italy and marched on Rome, but was shocked by the size of the army that Constantius brought against him.In the second surviving version, written by Hydatius, Heraclian's army was defeated at Utriculum (perhaps Oriculum, in Umbria, halfway between Rome and Ravenna), in a battle with 50,000 dead.Later historians have concluded that the departure of the Visigoths to Gaul in 412 meant that Constantius had his hands free in Italy and could focus all his attention on Heraclianus.Modern historians such as Wijnendaele, on the other hand, conclude that Constantius was absent with his field army and that Heraclianus was defeated by the Scholae Palatinae, the troops left behind to protect Emperor Honorius.The conflict between Constantius III and Heraclianus can therefore be seen as one of the many links in the chain of events that set in motion the downfall of the Roman Empire.