Bishop of Aquileia
Chromatius was brought up in the city of Aquileia, at the head of the Adriatic Sea. In all likelihood, he was probably born here as well.
His father died when he was young, and he lived with his widowed mother, older brother and unmarried sisters. His mother had the good opinion of St. Jerome, which the saint expressed in a letter to her in 374. His brother also became a bishop.