Grand Duke Konstantin Nikolayevich of Russia
1827–1892 (age 65)
Biography
Grand Duke Konstantin Nikolayevich of Russia (Russian: Вели́кий князь Константи́н Никола́евич; 21 September 1827 – 25 January 1892) was the Emperor's Viceroy of Poland from 1862 to 1863 and a general admiral of the Imperial Russian Navy.