Emperors; Roman Empire; Council of Chalcedon (451); Chalcedonian Church; Patriarchs and patriarchate; Exile; Nestorius, Patriarch of Constantinople, fl. 428; Eutyches, ca. 375- ca. 454; Administration
Cities and towns; Christian converts; Byzantine Empire; Greek language; Coptic language; Copts; Persecution; Politics; Roman Empire; Arab Conquest of Egypt; Arabic language; Monasteries; Coptic Church; Muslim converts from Christianity;