Nyorai kupfuurira kweiyi ndima - William II, Duke weBavaria akafa musi wa 31 May 1417, asina kuwana chimwe chinhu pamusoro pehondo yeFrisia. Rufu rwake rwakaita kuti hondo yeHook neCod itangezve
, apo munun'una wake John III, Duke weBavaria, achitsigirwa neCods, akaedza kutora countship kubva kumwanasikana waWilliam Jacqueline, Countess weHainaut, uyo akatsigirwa neHooks. Somugumisiro wokurwisana kwokukunda, chimiro cheRusununguko rweFrisia chakasimbiswazve naMambo Sigismund.