Auxentius, a Cappadocian, was ordained priest a.d. 343 by Gregory, the violent opponent of St. Athanasius. After the synod of Milan a.d. 355, when the bishop of that see, Dionysius, having refused to renounce Athanasius and the Nicene faith, was banished, Auxentius was forcibly intruded as bishop, and, in spite of the efforts of St. Hilary of Poitiers and other Catholics, maintained his position till his death in 374.