Henry I, Duke of Brunswick-Grubenhagen (1267–1322) Albert II, Duke of Brunswick-Lüneburg (1268–1318) William I, Duke of Brunswick-Lüneburg (1270–1292) Otto (died ca. 1346) Matilda of Brunswick-Lüneburg, married the Piast duke Henry III of Głogów, died 11 December 1310 Luther von Braunschweig (died 1335), Grand Master of the Teutonic Knights from 1331 Conrad (died ca. 1303) References Allgemeine Deutsche Biographie, vol. 1, p. 257-261 At the House of Welf site RootsWeb: Rulers of Brandenburg and their Czech Roots |- Princes of Wolfenbüttel 1236 births 1279 deaths People from the Harz Christians of the Prussian Crusade Old House of Brunswick Burials at Brunswick Cathedral