ANC397712 St. Cyril and St. Gregory (fresco) by Byzantine; Kariye Camii, Istanbul, Turkey; (add.info.: The Church of St. Savior in Chora is situated in the Edirnekapi neighbourhood; In the 16th century, the church was converted into a mosque by the Ottoman rulers, and it became a secularised museum in 1948; the interior of the building is covered with fine mosaics and frescoes; St. Cyril of Alexandria (c.376-444) Doctor of the Church; Pope Gregory (c.540-604); St. Gregory the Dialogist;); Photo 穢 Chris Hellier; out of copyright.