Hieronymus

Hieronymus (or Jerome), born about 350-360 was bishop of Vienne, from May to July 421.

Born into a patrician family from the west of Gaul, Hieronymus probably made a military career in the imperial army, but it was very modest. We only know that he was a centurion in the Roman army in the Battle of Adrianople against the Ostrogoths in 378. Following this Roman defeat, he seems to have ceased his military career and turned to a life of hermit but there is no certainty for the period from 378 to 421. In 421, after the death of the bishop Simplice, he was elected to succeed him and became the fourth bishop of Vienne in France. Hieronymus has not had time to leave a significant mark in history, as becomes ill shortly after he became bishop and died in July 421, just two months after his election.

The succession of Bishops in Vienne during the 5th century is somewhat obscure, some sources do not even mention him. Hieronymus is the only bishop of Vienna until the 8th century that has not been made a saint.