Columbia subject headings:
Bernstorff, Christian Günther, Graf von, 1769-1835.
Russia--Foreign relations--1801-1917.
Harvard subject headings:
Bernstorff, Christian Günther, Graf von, 1769-1835
Prussia (Germany)--Foreign relations--1815-1870.
Princeton subject headings:
Bernstorff, Christian Günther, Graf von, 1769-1835.
Russia--Foreign relations--1815-1870.