Ambrose of Milan
c. 339 – 397 · Italy
“So then faith cometh by hearing, and hearing by the word of God.”
A Roman governor with no theological training, Ambrose was suddenly acclaimed bishop of Milan by popular demand while trying to keep peace between rival factions. His preaching converted the young Augustine, and he famously made the emperor Theodosius do public penance for a massacre.
Read more on Wikipedia ↗Portrait: Late antique mosaic · Public domain