Sophie of Werle-Güstrow German duchess; Peerage person ID=40887 (1320–1364) Parents Mechtild von Braunschweig-Grubenhagen John II of Werle Children John III, Duke of Saxe-Lauenburg Albert V, Duke of Saxe-Lauenburg Elisabeth of Pomerania Eric III, Duke of Saxe-Lauenburg Bogislaw VI, Duke of Pomerania Wartislaw VI, Duke of Pomerania Siblings Bernard II of Werle Nicholas III of Werle Partners Albert IV, Duke of Saxe-Lauenburg Barnim IV, Duke of Pomerania