Columbia subject headings:
Harvard subject headings:
Alexandra, Empress, consort of Nicholas II, Emperor of Russia, 1872-1918--Correspondence.
Eleonore, Grand Duchess of Hesse, 1871-1937--Correspondence.
Ernst Ludwig, Grand Duke of Hesse, 1868-1937--Correspondence.
Hesse (Germany)--History--1806-1918.
Hesse (Germany)--Kings and rulers--Correspondence.
Russia--History--Nicholas II, 1894-1917.
Russia--Kings and rulers--Correspondence.
Princeton subject headings:
Alexandra, Empress, consort of Nicholas II, Emperor of Russia, 1872-1918--Correspondence.
Eleonore, Grand Duchess of Hesse, 1871-1937--Correspondence.
Empresses--Russia--Correspondence.
Ernst Ludwig, Grand Duke of Hesse, 1868-1937--Correspondence.