Grand Duchess Anastasia Nikolaevna of Russia (Russian: Великая Княжна Анастасия Николаевна Романова, Velikaya Knyazhna Anastasiya Nikolayevna Romanova) (June 18 [O.S. June 5] 1901 – July 17, 1918) was the youngest daughter of Tsar Nicholas II of Russia, the last sovereign of Imperial Russia, and his wife Alexandra Fyodorovna.