Princess Zinaida Nikolaevna Yusupova (Russian: Зинаи́да Никола́евна Юсу́пова; 2 September 1861 – 24 November 1939) was a Russian noblewoman, the only heiress of Russia's largest private fortune of her time. Famed for her beauty, the lavishness of her hospitality, and her extensive charity, she was a leading figure in pre-Revolutionary Russian society. In 1882, she married Count Felix Felixovich Sumarokov-Elston, who served briefly as General Governor of Moscow Military District (1914–1915). Zinaida is best known as the mother of Prince Felix Yusupov, the murderer of Grigori Rasputin. In April of 1919 she left Russia and spent her remaining years living in exile.