Columbia subject headings:
Alexandra, Empress, consort of Nicholas II, Emperor of Russia, 1872-1918.
Nicholas II, Emperor of Russia, 1868-1918.
Romanov, House of.
Soviet Union--History--Revolution, 1917-1921.
Harvard subject headings:
Nicholas II, Emperor of Russia, 1868-1918--Assassination.
Nicholas II, Emperor of Russia, 1868-1918--Family.
Princeton subject headings:
Alexandra, Empress, consort of Nicholas II, Emperor of Russia, 1872-1918.
Nicholas II, Emperor of Russia, 1868-1918.
Romanov, House of.
Soviet Union--History--Revolution, 1917-1921.