, also called Maximus Tiranus
, was Roman usurper
(409 - 411) in Hispania
(the Iberian Peninsula
- modern Portugal
). He had been elected by general Gerontius
, who might have been his father.
When the usurper Constantine III
ordered his general Gerontius to resign his command in Hispania, Gerontius mutinied
and installed Maximus.
While in power, Maximus was involved in civil war
against two other emperors, Constantine III and Honorius
. In the first 18 months of his reign Gerontius's forces defeated, but did not destroy, Constantine's forces. Seeing the losses of the armies of the two usurpers, Honorius
sent his general Constantius III
with an army to attack both, in which Constantius was quite successful.
After Gerontius's death in 411, defeated in the Battle of Arles
by Constantius, Maximus forfeited his claims and entered a monastery.
Another Maximus is recorded claiming the purple in Hispania, in 420-422; it is possible these two are the same. Members of a local senatorial family of the same name became militarily active against the Suebi
depredations in the next decades over the increasingly derelict Roman Tarraconensis