St. Augustine of Hippo
St. Augustine, also called Saint Augustine of Hippo, original Latin name Aurelius Augustinus, bishop of Hippo from 396 to 430, one of the Latin Fathers of the Church and perhaps the most significant Christian thinker after St. Paul. Augustine’s adaptation of classical thought to Christian teaching created a theological system of great power and lasting influence. His numerous written works, the most important of which are Confessions (c. 400) and The City of God (c. 413–426), shaped the practice of biblical exegesis and helped lay the foundation for much of medieval and modern Christian thought. In Roman Catholicism he is formally recognized as a doctor of the church.