Princess Irina Alexandrovna of Russia

Princess Irina Alexandrovna of Russia (;  – 26 February 1970) was the only daughter and eldest child of Grand Duke Alexander Mikhailovich and Grand Duchess Xenia Alexandrovna of Russia. She was the first grandchild of Tsar Alexander III and the only biological niece of Tsar Nicholas II. Irina was married to the wealthiest man in Imperial Russia, Prince Felix Felixovich Yusupov. Her husband was one of the men who in 1916 murdered Grigori Rasputin, "holy healer" to Irina's hemophiliac cousin, Tsarevich Alexei Nikolaevich.