Magnus, Duke of Holstein Danish prince, Prince-bishop of Ösel, King of Livonia (1540–1583) (1540–1583) Parents Dorothea of Saxe-Lauenburg Christian III of Denmark Children Mary Oldenburg Eudoxia Oldenburg Siblings Anne of Denmark, Electress of Saxony John the Younger, Duke of Schleswig-Holstein-Sonderburg Dorothea of Denmark, Duchess of Brunswick-Lüneburg Frederick II of Denmark Partners Maria Vladimirovna of Staritsa
