Ekaterina Petrovna of Oldenburg

Parents

• Princess Therese of Nassau
• Duke Peter of Oldenburg

Children

Siblings

• Duke Constantine Petrovich of Oldenburg
• Duchess Alexandra of Oldenburg
• Duke Alexander Petrovich of Oldenburg
• Duchess Therese Petrovna of Oldenburg
• Georg Friedrich Alexander von Holstein-Gottorp, Herzog von Oldenburg
• Duke Nikolaus of Oldenburg
• Marie Friederike Cäcilie of Oldenburg