Columbia subject headings:
Catherine II, Empress of Russia, 1729-1796.
Eastern question (Balkan)
Joseph II, Holy Roman Emperor, 1741-1790.
Russia--Foreign relations--1689-1801.
Russia--History--1689-1801.
Harvard subject headings:
Catherine II, Empress of Russia, 1729-1796
Eastern question (Balkan)
Joseph II, Holy Roman Emperor, 1741-1790.
Russia--Foreign relations--1689-1801.
Russia--History--1689-1801
Princeton subject headings:
Catherine II, Empress of Russia, 1729-1796.
Eastern question (Balkan)
Joseph II, Holy Roman Emperor, 1741-1790.
Russia--Foreign relations--1689-1801.
Russia--History--1689-1801.