Daughter of George I of Greece and Olga Constantinovna of Russia; wife of Grand Duke Paul Alexandrovich of Russia
Princess Alexandra of Greece and Denmark, later known as Grand Duchess Alexandra Georgievna of Russia; 30 August [O.S. 18 August] 1870 – 24 September [O.S. 12 September] 1891), was a member of the Greek royal family by birth and of the Russian imperial family by marriage. Wikipedia