Tsar Nicholas II of Russia and his son, Alexei, in military uniform, c1910-c1916. Nicholas II (1868-1918), Emperor of Russia from 1894 and the Tsarevich Alexei (1904-1918), who was a haemophiliac. Nicholas was forced to abdicate after the Russian Revolution in 1917, and he, Alexei and the rest of the Russian imperial family were murdered by Communists at Ekaterinburg in 1918. (Photo by Ann Ronan Pictures/Print Collector/Getty Images)
