Augustine of Hippo ( or ; ; 13 November 354 – 28 August 430), also known as Saint Augustine, Saint Austin, or Blessed Augustine, was an early Christian theologian and philosopher whose writings influenced the development of Western Christianity and Western philosophy. He was the bishop of Hippo Regius (modern-day Annaba, Algeria), located in Numidia (Roman province of Africa). He is viewed as one of the most important Church Fathers in Western Christianity for his writings in the Patristic Era. Among his most important works are The City of God and Confessions.