Annianus, according to Bk. III. chap. 14, below, held his office twenty-two years. In Apost. Const. VII. 46 he is said to have been ordained by Mark as the first bishop of Alexandria. The Chron. Orient. 89 (according to Westcott in the Dict. of Christ. Biog.) reports that he was appointed by Mark after he had performed a miracle upon him. He is commemorated in the Roman martyrology with St. Mark, on April 25.