IŠŌ' BAR NŪN. – Nestorian Catholicos, elected in 823 at the age of 80 and died in 828.
He wrote: Questions on Holy Scripture; a juridical work, Canons and Laws; some homilies; and Responses to Questions of the Deacon Macarius, of liturgical content.
BIBL.: A. Baumstark, Geschichte der syrischen Literatur, Bonn 1922, pp. 219–20; J. B. Chabot, Littérature syriaque, Paris 1934, pp. 109–10.
Guglielmo de Vries