| Grand Duke Konstantin Nikolayevich | |||||
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 Photograph, c. 1880 | |||||
| 9th Viceroy of the Kingdom of Poland | |||||
| In office 27 May 1862 – 19 October 1863 | |||||
| Monarch | Alexander II | ||||
| Preceded by | Alexander von Lüders | ||||
| Succeeded by | Friedrich Wilhelm Rembert von Berg | ||||
| Born | 21 September 1827 Winter Palace, Saint Petersburg, Russian Empire | ||||
| Died | 25 January 1892 (aged 64) Pavlovsk Palace, Pavlovsk, Russian Empire | ||||
| Burial | Grand Ducal Mausoleum, St. Petersburg, Russian Empire | ||||
| Spouse | |||||
| Issue Detail | |||||
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| House | Holstein-Gottorp-Romanov | ||||
| Father | Nicholas I of Russia | ||||
| Mother | Charlotte of Prussia | ||||
Grand Duke Konstantin Nikolayevich of Russia (Russian: Великий князь Константин Николаевич; 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.