Decentius
Encyclopedia
Magnus Decentius was a usurper
of the Western Roman Empire
against emperor
Constantius II
. American scholar Michael DiMaio speculates that Decentius possibly was the brother of Magnentius
, who had revolted against Constantius on 18 January 350.
Magnentius elevated Decentius as Caesar by him that winter, to oversee the defence of Gaul
and the Rhine frontier. He was appointed consul ordanarius
in 352, and again in 353 with Magnentius.
When Magnentius was defeated by Constantius at the Battle of Mons Seleucus
and committed suicide, Decentius, who was leading reinforcements, hanged himself at Senonae
.
Roman usurper
Usurpers are individuals or groups of individuals who obtain and maintain the power or rights of another by force and without legal authority. Usurpation was endemic during roman imperial era, especially from the crisis of the third century onwards, when political instability became the rule.The...
of the Western Roman Empire
Western Roman Empire
The Western Roman Empire was the western half of the Roman Empire after its division by Diocletian in 285; the other half of the Roman Empire was the Eastern Roman Empire, commonly referred to today as the Byzantine Empire....
against emperor
Roman Emperor
The Roman emperor was the ruler of the Roman State during the imperial period . The Romans had no single term for the office although at any given time, a given title was associated with the emperor...
Constantius II
Constantius II
Constantius II , was Roman Emperor from 337 to 361. The second son of Constantine I and Fausta, he ascended to the throne with his brothers Constantine II and Constans upon their father's death....
. American scholar Michael DiMaio speculates that Decentius possibly was the brother of Magnentius
Magnentius
Flavius Magnus Magnentius was a usurper of the Roman Empire .-Early life and career:...
, who had revolted against Constantius on 18 January 350.
Magnentius elevated Decentius as Caesar by him that winter, to oversee the defence of Gaul
Gaul
Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...
and the Rhine frontier. He was appointed consul ordanarius
Roman consul
A consul served in the highest elected political office of the Roman Republic.Each year, two consuls were elected together, to serve for a one-year term. Each consul was given veto power over his colleague and the officials would alternate each month...
in 352, and again in 353 with Magnentius.
When Magnentius was defeated by Constantius at the Battle of Mons Seleucus
Battle of Mons Seleucus
The Battle of Mons Seleucus was fought in 353 between the forces of the legitimate Roman emperor Constantius II of the line of Constantine I the Great and the forces of the usurper Magnentius. Constantius' forces were victorious, and Magnentius later committed suicide.It took place in today's...
and committed suicide, Decentius, who was leading reinforcements, hanged himself at Senonae
Senonae
Senonae is a settlement of uncertain location in Roman Gaul. It may have been the capital of the Senones tribe, the present city of Sens on the Yonne in the Bourgogne, or a location in the present commune of Senon. Julian the Apostate wintered there on his campaign against the Alamanni in the Rhine...
.