Princess Helene of Waldeck and Pyrmont

Hereditary Grand Duchess of Oldenburg (1899–1948) (1899–1948)

Parents

• Friedrich, Prince of Waldeck and Pyrmont
• Princess Bathildis of Schaumburg-Lippe

Children

• Duke Johann of Oldenburg
• Duke Egilmar of Oldenburg
• Duchess Eilika of Oldenburg
• Duchess Altburg of Oldenburg
• Huno Herzog von Oldenburg
• Duke Peter of Oldenburg
• Duchess Rixa of Oldenburg
• Duke Friedrich August of Oldenburg
• Anton-Günther, Duke of Oldenburg

Siblings

• Prince Georg Wilhelm of Waldeck and Pyrmont
• Josias, Hereditary Prince of Waldeck and Pyrmont
• Maximilian of Waldeck and Pyrmont

Partners

• Nikolaus, Hereditary Grand Duke of Oldenburg