Sophie of Saxe-Lauenburg (1521-1571) (1521–1571) Parents Catherine of Brunswick-Wolfenbüttel, Duchess of Saxe-Lauenburg Magnus I, Duke of Saxe-Lauenburg Children Anne von Oldenburg Anton II of Oldenburg-Delmenhorst John VII, Count of Oldenburg Christian von Oldenburg Clara von Oldenburg Katherine von Oldenburg Siblings Ursula von Sachsen-Lauenburg Catherine of Saxe-Lauenburg Francis I, Duke of Saxe-Lauenburg Dorothea of Saxe-Lauenburg Clara of Saxe-Lauenburg Partners Anthony I, Count of Oldenburg