St. Ambrose

born perhaps 340

Saint , bishop of Milan from 374, wrote, composed, and imposed orthodoxy on the early Christian Church.

This ecclesiastical figure of the 4th century most influenced. He served as consular prefect of Liguria and Emilia, headquartered, before popular acclamation. Ambrose staunchly opposed Arianism, and people accused him of fostering persecutions of Jews and pagans.

Tradition credits Ambrose with promoting "antiphonal chant", a style in which one side of the choir responds alternately, as well as Veni redemptor gentium, a hymn of Advent.

Ambrose ranks of the four original doctors of the Church, and the patron. He notably influenced Saint Augustine of Hippo.