<prompt> Qedela umusho olandelayo: UWilliam wayeyindodana endala kaHenry the Mild, umbusi waseBrunswick, emshadweni wakhe wokuqala noSophia, indodakazi kaWartislaw IV, umbusi wasePomerania. Ngemva kokushona kukayise ngo-1416, wathola njengefa i-Brunswick Principality of Lüneburg ayeyibusa ngokuhlanganyela nomfowabo omncane u-Henry the Peaceful. UWilliam waba umbusi onamandla; ngokushesha wangena ezingxabanweni eziningi nezikhulu ezingomakhelwane ezifana noMbhishobhi Omkhulu waseBremen kanye noMbhishobhi waseHildesheim, futhi wasekela amaCounts aseSchauenburg naseHolstein empini yabo neNkosi u-Eric waseDenmark. Walwa futhi noMarkgrave Frederick waseMeissen wanqoba  <response>: Amabutho amaHussite ngo-1421 eMpini yaseBrux. 