Sophie of Pomerania (1376-1406) (1376–1406) Parents Anna of Mecklenburg-Stargard Wartislaw VI, Duke of Pomerania Children Catherine of Brunswick-Lüneburg William the Victorious, Duke of Brunswick-Lüneburg Siblings Barnim VI, Duke of Pomerania Wartislaw VIII, Duke of Pomerania Anna Warcisławówna Partners Henry the Mild, Duke of Brunswick-Lüneburg