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Hilary of Poitiers

Bishop of Poitiers (c. 310 – c. 367)

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Through Constantinople

Early life

Hilary was born at Poitiers either at the end of the 3rd or beginning of the 4th century AD. His parents were pagans of distinction. He received a good education, which included a high level of Greek. He studied, later on, the Old and New Testament writings, with the result that he abandoned his Neoplatonism for Nicene Christianity, and with his wife and his daughter, traditionally known as Saint Abra of Poitiers, were baptized and received into the Church.

Arianism was becoming popular among Christians in this era and this theological position was refuted by the bishops at the Council of Nicaea, under the sponsorship of the emperor Constantine the Great. There had been rigorous debates—even some violent disputes—between Trinitarians and Arians, leading up to the Council.

In 353, the Trinitarian Christians of Arles elected Hilary as bishop as the existing bishop, Saturninus of Arles, was an Arian. At the Council of Arles, the legates of Pope Liberius refused to condemn Arianism and considered formally opposing Athanasius of Alexandria, who was a strong advocate of Trinitarianism against Arianism. Hilary still managed to secure the local excommunication, by those of the Gallican hierarchy who were his allies, of Bishop Saturninus and two of his prominent supporters, Bishops Ursacius of Singidunum and Valens of Mursa.

About the same time, Hilary wrote to Emperor Constantius II a remonstrance against the persecutions by which the Arians had sought to crush their opponents (Ad Constantium Augustum liber primus, of which the most probable date is 355). Other historians refer to this first book to Constantius as the "Book Against Valens", of which only fragments are extant. His efforts did not succeed at first, for at the synod of Biterrae (Béziers), summoned by the emperor in 356 with the professed purpose of settling the longstanding dispute, an imperial rescript banished the new bishop, along with Rhodanus of Toulouse, to Phrygia, a stronghold of Arianism.

Hilary spent nearly four years in exile, although the reasons for this banishment remain obscure. The traditional explanation is that Hilary was exiled for refusing to subscribe to the condemnation of Athanasius and the Nicene faith. More recently several scholars have suggested that political opposition to Constantius and support of the usurper Claudius Silvanus may have led to Hilary's exile.

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