First century bishop, disciple of the Apostles. He was the companion of Saint Paul during his second Roman captivity, and is mentioned as having left the Apostle to go into Galatia (2 Timothy 4). The earliest tradition presents him as Bishop in Galatia. Later accounts made him Bishop of Vienne and Mainz, but these claims have little weight. According to the he was martyred under Trajan. Feast, 27 June; translation of relics, 29 December.