Mezue ahịrịokwu na-esonụ: William nke Abụọ, Duke nke Bavaria nwụrụ na 31 May 1417, na-enweghị ihe ọ bụla ọzọ rụzuru banyere agha Frisian. Ọnwụ ya kpatara ọgba aghara ọhụrụ nke
Agha Hook na Cod, mgbe nwanne ya nwoke nke nta John nke Atọ, Duke nke Bavaria, site na nkwado nke Cods, gbalịrị iweghara ọkwa nke nwa nwanyị William Jacqueline, Countess nke Hainaut, onye nwere nkwado nke Hooks. N'ihi esemokwu nke usoro, Emperor Sigismund kwughachiri ọnọdụ nke nnwere onwe Frisian.