Edited sentence: A note of 1137 mentions that the diocese of Barda‘a and Armenia no longer existed, and that the responsibilities of its metropolitans had been undertaken by the bishop of A˛la†.An East Syrian diocese is mentioned at the beginning of the twelfth century at Urmi, and three others were created before the end of the thirteenth century, one a new metropolitan see for a province of Adarbaigan, possibly with its seat at Tabriz, (perhaps replacing the old metropolitan province of Arran), and the other two dioceses for Eshnuq and Salmas.Bishops from each of these towns attended the enthronement of Yahballaha III, but they may have been founded slightly earlier.The Arran or Little Armenia district in modern Azerbaijan, with its chief town Barda‘a, was an East Syrian metropolitan province in the tenth and eleventh centuries, and represented the northernmost extension of the Church of the East.The Gilan district to the southwest of the Caspian Sea had an East Syrian bishop named Surin in 554, and a metropolitan province was created for Dailam and Gilan in the eighth century by Timothy I.The Mongol occupation of Adarbaigan enabled churches to be built in Tabriz and Nakichevan for the first time in those cities’ history.The region was shortly afterwards converted to Islam, and by the beginning of the eleventh century the diocese of Dailam, by then united with Gurgan as a suffragan diocese of Rai, no longer existed.Their foundation probably reflected a migration of East Syrian Christians to the shores of Lake Urmi after the lakeside towns became Mongol cantonments in the 1240s.Timothy I also consecrated a bishop named Eliya for the Caspian district of Muqan, a diocese not mentioned elsewhere and probably also short-lived