Ecclesiastical History

Theodoret of Cyrus or Cyrrhus (c. AD 393 - c. 458/466) was an influential theologian of the School of Antioch, biblical commentator, and Christian bishop of Cyrrhus (423-457). He played a pivotal role in several 5th-century, Byzantine Church controversies that led to various ecumenical acts and schisms. He is canonized as "Blessed" in the Eastern Orthodox Church, and some Chalcedonian and East Syrian Christians regard him as a saint.