Title: Ierarkhii︠a︡ Russkoĭ pravoslavnoĭ t︠s︡erkvi, patriarshestvo i gosudarstvo v revoli︠u︡t︠s︡ionnui︠u︡ ėpokhu
Subjects: Church and state, History, Patriarchs and patriarchate, Christian leadership, Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ
Places: Russia (Federation), Russia, Soviet Union