Columbia subject headings:
Church and state--Russia--History.
Russia--Civilization.
Russia--History.
Russia--Kings and rulers.
Harvard subject headings:
Church and state--Russia--History
Russia--Civilization.
Russia--History.
Russia--Kings and rulers.
Princeton subject headings:
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History.