bishop of Nisibis, a zealous Nestorian of the fifth century. Having been ejected from the school of Edessa, he was made bishop of Nisibis A.D. 435, and devoted himself earnestly for nearly half a century to the establishment of Nestorianism in Persia. He founded the school of Nisibis, a prolific source of Nestorianism. He advocated the right of priests to marry, and himself married a nun. See Assemani, Bibl. Orient. III, 2:77; Mosheim, Ch. Hist. 1:363. (See NESTORIANS).