Aurelius Ambrosius, better known in English as
Saint Ambrose (; c. 3404 April 397), was a
bishop of Milan who became one of the most influential ecclesiastical figures of the 4th century. He was
consular prefect of
Liguria and
Emilia, headquartered in Milan, before being made bishop of Milan by popular acclamation in 374. Ambrose was a staunch opponent of
Arianism, and has been accused of fostering persecutions of Arians,
Jews, and
pagans.