(395–642 AD)
The period during which Egypt was ruled from Constantinople by the eastern Roman emperor. The era is marked by increasing religious differences between the orthodox court and the Monophysite church in Egypt, which became increasingly nationalistic, eventually breaking away to form the separate Coptic Church. The period ended with the Arabic conquest of Egypt in 642 AD.
See also Religion.
Historical Dictionary Of Ancient Egypt by Morris L. Bierbrier
Ancient Egypt. A Reference Guide. EdwART. 2011.