Candidus, commander of the Theban Legion Cassius and Florentius, members of the Theban Legion Catherine of Alexandria, virgin martyr Celadion, the 9th Pope of Alexandria Chiaffredo, member of the Theban Legion Christoldoulos, the 66th Pope of Alexandria Chrysanthus and Daria, martyrs Clement of Alexandria, the 5th Dean of Catechetical School of Alexandria Cleopas, the apostle and bishop of Jerusalem Cleopatra Colluthus, of Antinoöpolis, martyr Constantine, the Emperor of the Roman Empire Cosmas I, the 44th Pope of Alexandria Cosmas II, the 54th Pope of Alexandria Cosmas III, the 58th Pope of Alexandria Cosmas and Damian, martyrs Cyprian and Justina, martyrs Cyracuse and Julietta Cyril, bishop of Jerusalem Cyril I, the 24th Pope of Alexandria Cyril II, the 67th Pope of Alexandria Cyril III, the 75th Pope of Alexandria Cyril IV, the 110th Pope of Alexandria Cyril V, the 112th Pope of Alexandria Cyril VI, the 116th Pope of Alexandria Cyrus and John, unmercenary physicians, wonderworkers, martyrs