Grand Duke Constantine Constantinovich of Russia
Grand Duke Konstantin Konstantinovich of Russia (Russian: Константи́н Константи́нович; [kənstɐnʲˈtʲin kənstɐnʲˈtʲinəvʲɪtɕ]; 22 August 1858 in Strelna – 15 June 1915 in Pavlovsk) was a grandson of ...
Grand Duke Constantine Constantinovich of Russia - Wikipedia