Duke Constantine Petrovich of Oldenburg
| Duke Constantine | |||||
|---|---|---|---|---|---|
| Born | 9 May 1850 Saint Petersburg, Russian Empire | ||||
| Died | 18 March 1906 (aged 55) Nice, France | ||||
| Spouse | |||||
| Issue | Alexandra Constantinovna, Princess Yurievsky Countess Catherine Constantinovna Count Nicholas Constantinovich Count Alexei Constantinovich Count Peter Constantinovich Countess Nina Constantinovna | ||||
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| House | Holstein-Gottorp | ||||
| Father | Duke Peter of Oldenburg | ||||
| Mother | Princess Therese of Nassau-Weilburg | ||||
Duke Constantine Frederick Peter of Oldenburg (German: Herzog Konstantin Friedrich Peter von Oldenburg; Russian: Константин Петрович Ольденбургский, tr. Konstantin Petrovich Oldenburgskiy; 9 May 1850 – 18 March 1906) was the youngest son of Duke Peter Georgievich of Oldenburg and his wife, Princess Therese of Nassau-Weilburg. Known in the court of Emperor Nicholas II as Prince Constantine Petrovich Oldenburgsky, he was the father of the Russian Counts and Countesses von Zarnekau.