Title: Russkie patriarkhi XX veka
Subjects: Biography, Bishops, Church and state, Church history, History, Orthodox Eastern Church, Patriarchs and patriarchate, Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ
Places: Russia, Soviet Union
People: Sergiĭ Patriarch of Moscow and All Russia (1867-1944), Tikhon Patriarch of Moscow and All Russia (1865-1925)