Title: I︠A︡vli︠a︡etsi︠a︡ li Armi︠a︡nskai︠a︡ T︠S︡erkovʹ Pravoslavnoĭ?
Subjects: Armenian Church, Council of Chalcedon (451), History, Orthodox Eastern Church, Relations, Council of Chalcedon (451 : Chalcedon)
People: Photius I Saint, Patriarch of Constantinople (ca. 820-ca. 891)