Ambrose (am'-broz), St., a doctor in the Latin Church of the 4th century, born at Treves, 340. Consecrated Archbishop of Milan, 374. Ambrose was repeatedly, in the discharge of his duty to the church, brought into direct conflict with the highest secular authority. He rebuked Valentinian, defied Maximus, and after the massacre of Thessalonica, compelled the great Theodosius to a humiliating penance before admitting him to Christian communion. To him is ascribed the noble hymn, "Te Deum Laudamus." No father of the church has a fame more wide, more beautiful, or more deserved. Died, 397.