Columbia subject headings:
Diplomatic and consular service, Russian--History.
Russia--Foreign relations--To 1689.
Harvard subject headings:
Diplomatic and consular service, Russian--History.
Diplomatic and consular service, Soviet--History.
Russia--Foreign relations--To 1689.
Princeton subject headings:
Diplomatic etiquette--Russia.
Russia--Court and courtiers.
Russia--Politics and government--1533-1613.
Russia--Politics and government--1613-1689.