Hilary of Arles, St (
c.401–49), Bp. of Arles. A monk of
Lérins, he became Bp. of the metropolitan see of Arles
c. 430, and presided over several councils. In 444, by deposing a bishop, he seems to have exceeded his rights, and Pope
Leo I deprived Arles of its metropolitan jurisdiction and obtained from the Emperor a decree granting Rome supreme authority over the Church in Gaul. Feast day, 5 May.