He was sent by his father to Gaul with a powerful army, accompanied by three generals — Thorisarius, Everdingus, and Hermianus — in order to oppose the Visigoths then occupying Provence and threatening to conquer the Auvergne.
He and his generals were defeated by the Visigothic king Euric near Arles and all four of them lost their lives.
The Chronica, in entry 649, states: Antimolus a patre Anthemio imperatore cum Thorisario, Everdingo et Hermiano com.
stabuli Arelate directus est, quibus rex Euricus trans Rhodanum occurrit occisisque ducibus omnia vastavit Antimolus was sent by his father, Emperor Anthemius, to Arles, with Thorisarius, Everdingus and Hermanius, comes [or comites] stabuli: King Euric met them on the far side of the Rhone and, having killed the duces, laid everything waste.
It is not impossible that Anthemiolus' army was sent to reinforce Riothamus and that Euric defeated both forces in turn, probably in either 470 or 471.