Princess Altburg, Hereditary Princess of Waldeck and Pyrmont Oldenburger Royal and Waldeck-Pyrmonter Princier (1903–2001) (1903–2001) Parents Duchess Elisabeth Alexandrine of Mecklenburg-Schwerin Frederick Augustus II, Grand Duke of Oldenburg Children Prince Wittekind, Prince of Waldeck and Pyrmont Princess Guda of Waldeck and Pyrmont Princess Margarethe of Waldeck and Pyrmont Princes Ingrid of Waldeck and Pyrmont Princess Alexandra of Waldeck and Pyrmont Siblings Duchess Alexandrine of Oldenburg Duchess Margarete of Oldenburg Duchess Ingeborg Alix of Oldenburg Duke Friedrich August of Oldenburg Duchess Sophia Charlotte of Oldenburg Duke Nikolaus, Hereditary Grand Duke of Oldenburg Partners Josias, Hereditary Prince of Waldeck and Pyrmont