Columbia subject headings:
Greece--Foreign relations--Russia--Sources.
Orthodox Eastern Church--History--Sources.
Patriarchs and patriarchate--Russia--History--Sources.
Russia--Foreign relations--Greece--Sources.
Russia--Foreign relations--To 1689--Sources.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History--16th century--Sources.
Harvard subject headings:
Greece--Foreign relations--Russia--Sources.
Orthodox Eastern Church--History--Sources.
Patriarchs and patriarchate--Russia--History--Sources.
Russia--Foreign relations--Greece--Sources.
Russia--Foreign relations--To 1689--Sources.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History--16th century--Sources.
Princeton subject headings:
Greece--Foreign relations--Russia--Sources.
Patriarchs and patriarchate--Russia--History--16th century--Sources.
Russia--Foreign relations--Greece--Sources.
Russia--Foreign relations--To 1689--Sources.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History--16th century--Sources.