Arab Conquest of Egypt; Alexandria (Egypt); Administration; Byzantine Empire; Greeks; Roman Empire; Taxation; Cities and towns; Provinces of the Roman Empire
Bishops; Patriarchs and patriarchate; Alexandria (Egypt); Council of Nicaea (1st: 325); Councils and synods; Athanasius, Saint, Patriarch of Alexandria, d. 373.; Arians; Monks
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;