Saint Augustine of Hippo is one of the most important Christian theologians, and his works have exerted a great influence not only on the development of Western Christianity, but also on Western philosophy. Apart from the Roman Catholic Church, where he is honored as a saint as well as a Church Father, Saint Augustine of Hippo is also a prominent figure in the Anglican Communion, in the Eastern Orthodox Church, and even in some of the churches that grew out of the Protestant Reformation of the 16th century.