As Maximus took his army to fight the Arveni and Allobroges, several oppida were besieged. The locals collected all their food and cattle and withdrew into the safety of their oppida, which were essentially fortified administrative centres. As Maximus' main objective was to defeat the warriors that had gathered at the Isère River, he left small detachments to take care of those oppida who were still resisting. This was also the case at Morginum.
Maxentius, the Roman commander, had tried to take the town by storm but had failed miserably. Morginum was a substantial town fortified with a sturdy wooden wall. His legionaries attempted to
