Gerontius (juron'shus) [key], d. 411, Roman general, b. Britain. He at first supported the usurper Constantine (d. 411), and was left in charge of Spain. He set up (409) his own candidate, Maximus, as emperor, at the same time inviting or permitting the entrance of the Alani, Suevi, and Vandals. In 411 he besieged Constantine at Arles, but at the approach of Constantius (later Emperor Constantius III) his troops deserted; he escaped to Spain but was assassinated.
