Columbia subject headings:
Orthodox Eastern Church--17th century.
Russia--Relations--17th century--Ukraine--Sources.
Ukraine--Relations--17th century--Russia--Sources.
Harvard subject headings:
Orthodox Eastern Church--Russia--History--17th century--Sources.
Russia--Relations--Ukraine--Sources.
Ukraine--Relations--Russia--Sources.
Princeton subject headings:
Constantinople (Ecumenical patriarchate)--Foreign relations--Russia--Sources.
Russia--Foreign relations--Constantinople (Ecumenical patriarchate)--Sources.
Russia--Foreign relations--To 1689--Sources.