Columbia subject headings:
Harvard subject headings:
Nicholas II, Emperor of Russia, 1868-1918--Assassination.
Nicholas II, Emperor of Russia, 1868-1918--Family--Assassination.
Romanov, House of.
Russia--History--1801-1917.
Soviet Union--History--Revolution, 1917-1921.
Princeton subject headings:
Nicholas II, Emperor of Russia, 1868-1918--Assassination.
Nicholas II, Emperor of Russia, 1868-1918--Family.
Romanov, House of.
Russia--Kings and rulers--Biography.