Barsuma, Or Barsnmas. I. A Nestorian bishop of the 5th century, died about 489. Having been expelled from the school of Edessa, he took refuge in Persia, accompanied by many of his followers, and in 435 was created bishop of Nisibis. He acquired great influence with the Persian king Ferozes, whom he induced to expel all Christians who adhered to the teachings of the Greek fathers, and not only to admit Nestorians in their place, but to allow them to establish themselves in the chief cities, Seleucia and Ctesiphon. He established the famous school at Nisibis, from which went forth missionaries who in the next century carried the Nestorian doctrines into Syria, Egypt, Arabia, India, Tartary, and China. The Nestorians of Persia and the neighboring countries still venerate him as the parent and founder of their faith. He upheld the right of the clergy to marry, and himself espoused a nun named Mam-maea. He was the author of discourses, homilies, hymns, and a Syriac liturgy, none of which are extant. II. A Syrian archimandrite, who headed the Eutychian party at the so-called "robber council" of Ephesus in 449. By the Jacobites he is held to have been a saint and worker of miracles.