Olga Constantinovna of Russia1851 - 1926 Born Wed, 3 September 1851 Pavlovsk Palace, Saint Petersburg Died Fri, 18 June 1926 Rome Buried Tatoi Palace, Athens Details Parents Grand Duchess Olga Constantinovna Lived 74 years, 9 months, 15 days father Konstantin Nikolayevich of Russia 1827 - 1892 mother Alexandra of Saxe-Altenburg 1830 - 1911 Siblings Brother Nicholas Konstantinovich of Russia 1850 - 1918 Sister Vera Konstantinovna of Russia 1854 - 1912 Brother Konstantin Konstantinovich of Russia 1858 - 1915 Brother Dmitry Konstantinovich of Russia 1860 - 1919 Brother Vyacheslav Konstantinovich of Russia 1862 - 1879