Aurelius Ambrosius, as was his secular name, was born in 339 or 340 and died in A.D. 397. He was highly educated, he served as a lawyer and he was assigned with important administrative roles in the Roman State. In 374, he was appointed Bishop of Milan. He is identified as an important ecclesiastical figure and a Doctor of the Church. He is commemorated as a Saint on the 7th of December.