St. Hilary of Poitiers
Born in the early fourth century Poitiers. It was called the "Athanasius of the West", who was a contemporary. Both had to fight against the same opponent, Arianism. Participated in the theological polemics with speeches and especially writing. Hilary was exiled to Phrygia by the Emperor Constantine, who had aligned with the decisions of the Arian synod of Béziers in the year 356. Contact with the Orient was providential for the bishop of Poitiers. During the five years spent in Phrygia learned and discovered Greek origins, as also the great theological production of the Eastern Fathers, obtaining an important documentation for the book that earned him the title of Doctor of the Church: On the Trinity, whose title De Fide adversus original Arians. It was the most important and profound treatise which had appeared previously on the main tenet of the Christian faith. Despite being banished, not inactive. With the booklet Maxertiam Against Constantius himself violently attacked,...