St. Mello is said to have been a native of Great Britain; his zeal for the Faith engaged him in the sacred ministry, and God having blessed his labor with wonderful success, he was consecrated first bishop of Rouen in Normandy, which see he is said to have held forty years. He died in peace, about the beginning of the fourth century.

Taken from Father Alban Butler's "Lives of the Saints for Every Day in the Year — With Reflections" Copyright 1955.