Catherine of Brunswick-Lüneburg German noble (1395–1442) Parents Sophie of Pomerania Henry the Mild, Duke of Brunswick-Lüneburg Children Frederick II Anna of Saxony, Landgravine of Hesse Sigismund of Saxony William III Catherine of Saxony, Electress of Brandenburg Henry of Saxony Siblings Henry the Peaceful, Duke of Brunswick-Lüneburg William the Victorious, Duke of Brunswick-Lüneburg Partners Frederick I
