Discover More About St. Monica with Journey with the Saints Saint Monica, also known as Monica of Hippo, is St. Augustine of Hippo's mother. She was born in 331 A.D. in Tagaste, which is present-day Algeria. When she was very young, she was married off to the Roman pagan Patricius, who shared his mother's violent temper. Patricius' mother lived with the couple and the duo's temper flares proved to be a constant challenge to young Monica. While Monica's prayers and Christian deeds bothered ...