The Patriarch of Antioch was the head of the Church of Antioch. According to tradition, the bishopric of Antioch was established by Saint Peter in the 1st century AD and was later elevated to the status of patriarchate by the First Council of Nicaea in 325. The church first underwent schism after the deposition of Eustathius in 330 over the issue of the Arian controversy and persisted until its resolution in 414.