Maurice, Duke of Saxe-Lauenburg Duke of Saxe-Lauenburg (1551–1612) (1551–1612) Parents Sibylle of Saxony Francis I, Duke of Saxe-Lauenburg Children Julius Ernst Rautenstein Siblings Francis II, Duke of Saxe-Lauenburg Ursula of Saxe-Lauenburg Dorothea van Saksen-Lauenburg Henry of Saxe-Lauenburg Friedrich von Sachsen-Lauenburg Sidonia Catharina van Saksen Magnus II, Duke of Saxe-Lauenburg