Original sentence: The only dioceses definitely in existence at the end of the thirteenth century were Armenia (whose bishops sat at ˘ala† on the northern shore of Lake Van), Sinjar, Balad, Arzun, and Maiperqa† (whose bishop seems also to have been responsible for Amid and Mardin)
Edited sentence: The only dioceses definitely in existence at the end of the thirteenth century were Armenia (whose bishops sat at ala on the northern shore of Lake Van), Sinjar, Balad, Arzun, and Maiperqa (whose bishop seems also to have been responsible for Amid and Mardin)