Saint Ambrose, (Latin: Sanctus Ambrosius, "Ambrosius episcopus Mediolanensis"; Italian: Sant'Ambrogio; Lombard: Sant'Ambroeus) (c. 340 – 4 April 397), bishop of Milan (Mediolanum in Latin), was one of the most eminent bishops of the 4th century. Together with Augustine of Hippo, Jerome, and Gregory I, he is counted as one of the four doctors of the West of antique church history.