Patriarchs and patriarchate; Coptic Church; Alexandria (Egypt); History of the Patriarchs; Monks; Fatimid dynasty; Crusades; Jerusalem; Arabic language
Roman Empire; Byzantine Empire; Christianity; Emperors--Byzantine Empire; Diocletian, Emperor of Rome, 245-313; Eusebius, of Caesarea, Bishop of Caesarea, ca. 260- ca. 340; Heresy; Persecution; Arius; Arians; Arianism; Athanasius, Saint, Patriarch...