Grand Duchess Olga Nikolaevna of Russia ( Olga Nikolaevna Romanova ) ( ; , November 16 after 1900 -- July 17 , 1918 ) was the oldest daughter of Tsar Nicholas II of Russia , the last sovereign of Imperial Russia , and his wife Alexandra Fyodorovna . Grand Duchess Olga Nikolaevna of Russia ( Olga Nikolaevna Romanova ) ( ; , November 16 after 1900 -- July 17 , 1918 ) was the eldest daughter of the last autocratic ruler of the Russian Empire , Emperor Nicholas II , and of Empress Alexandra of Russia .