Duke Peter of Oldenburg
Russian duke (1812–1881) (–)
Parents
Children
- Georg Friedrich Alexander von Holstein-Gottorp, Herzog von Oldenburg
- Duchess Therese Petrovna of Oldenburg
- Ekaterina Petrovna of Oldenburg
- Marie Friederike Cäcilie of Oldenburg
- Duke Constantine Petrovich of Oldenburg
- Duchess Alexandra of Oldenburg
- Duke Nikolaus of Oldenburg
- Duke Alexander Petrovich of Oldenburg