the future patriarchs Hnanisho I (686–700) and Aba II (742–753). Gabriel is known to have written biblical commentaries and Aba II works of philosophy. The latter had a dispute with his clergy over the running of the school. Famous teachers and alumni Patriarch Aba II, alumnus Patriarch Acacius, possible teacher late 5th century Cyrus of Edessa, director mid-6th century Bokhtisho, director c. 600 Gabriel Arya, teacher late 7th century Gregory of Kashkar, alumnus Patriarch Gregory, teacher of biblical interpretation c. 605 Patriarch Hnanisho I, alumnus Ishai, director late 6th century Ramisho the Interpreter, teacher late 6th century Titus of Hdatta, alumnus Notes Bibliography Church of the East Seleucia Nestorianism Christian schools Christianity in the Sasanian Empire Christianity in the Umayyad Caliphate