Back دوك پيتير جيورجيڤيتش اوف اولدينبورج ARZ Петер фон Олденбург (1812–1881) Bulgarian Petr Oldenburský (1812–1881) Czech Peter af Oldenburg (1812-1881) Danish Peter von Oldenburg (1812–1881) German Πέτρος Γεώργιεβιτς του Όλντενμπουργκ Greek Pedro Georgievich de Oldemburgo Spanish Pierre Gueorguievitch d'Oldenbourg French פטר, דוכס אולדנבורג HE Pietro di Oldenburg (1812-1881) Italian
| Peter | |
|---|---|
| Duke of Oldenburg | |
 | |
| Born | 26 August [O.S. 14 August] 1812 Yaroslavl, Yaroslavl Governorate, Russian Empire |
| Died | 14 May [O.S. 2 May] 1881 (aged 68) Saint Petersburg, Russian Empire |
| Burial | |
| Spouse | |
| Issue | Grand Duchess Alexandra Petrovna of Russia Duke Nicholas Duchess Cecile Duke Alexander Duchess Catherine Duke George Duke Constantine Therese, Princess Therese Petrovna Romanovskaya |
| House | Holstein-Gottorp |
| Father | Duke George of Oldenburg |
| Mother | Grand Duchess Catherine Pavlovna of Russia |
| Religion | Lutheranism |
Duke Constantine Frederick Peter of Oldenburg (German: Konstantin Friedrich Peter; Russian: Пётр Гео́ргиевич Ольденбу́ргский, romanized: Pëtr Geórgievič Ol'denbúrgskij; 26 August [O.S. 14 August] 1812 – 14 May [O.S. 2 May] 1881) was a Duke of the House of Oldenburg. He was the grandfather of Duke Peter of Oldenburg as well as grandfather of Grand Duke Nicholas Nikolaevich, General of the Imperial Russian Army during World War I. His great-great-grandson, Nicholas Romanov, was the President of the Romanov Family Association until his death in 2014.
Peter of Oldenburg was a scholar and philanthropist. He was also noted composer of music. In 1857 he composed the music for Marius Petipa's ballet La Rose, la Violette et le Papillon. The Pas d'Esclave from the ballet Le Corsaire, which is taken from his score for this work, is still heard in theatres all over the world.