Ka cika wannan magana: Bayan mutuwar John II a shekara ta 1454, ya soma saka hannu sosai a ƙungiyar masu sarauta da ke yaƙi da Henry na Huɗu na Castile. A shekara ta 1445, ya yi yaƙi a
Yaƙin Olmedo na farko da Alvaro de Luna wanda ya goyi bayan Henry IV. Shekara guda bayan haka a cikin 1465, ya shiga cikin abin da ake kira Farce na Ávila inda ƙungiyar manyan mutanen Castilian suka zartar da alama ta Henry IV kuma suka ayyana ɗan'uwansa ɗan'uwansa, Alfonso na Castile, wanda aka fi sani da "Alfonso the Innocent", ya zama sarki na halal. An kira bikin "Farce of Avila" ta masu sukar zamani kuma sunan ya shiga tarihi. Don sa hannu a cikin "Farce", ya sami taken Constable na Castile