Cosmas was the first residential Chalcedonian (Melkite) patriarch to be established in Alexandria following the Muslim conquest of Egypt in the 640s. The see had remained vacant since, but Cosmas was appointed with the consent of both the Umayyad Caliph and the Byzantine Emperor.
Cosmas was the first resident Chalcedonian (Melkite) patriarch to be appointed in Alexandria following the Muslim conquest of Egypt in the 640s. The see had remained vacant since, but Cosmas was chosen with the approval of both the Umayyad Caliph and the Byzantine Emperor.