Cyprian, Metropolitan of Moscow (born 1336)

Cyprian, Metropolitan of Kiev

Metropolitan of Kiev and All Rus' (1375–1406)

Cyprian was a prelate of Bulgarian origin, who served as the Metropolitan of Kiev, Rus' and Lithuania and the Metropolitan of Kiev and all Rus' in the Ecumenical Patriarchate of Constantinople. During both periods, he was opposed by rival hierarchs and by the grand prince of…