<prompt> Qedela umusho olandelayo: Ngemva kokufa kukaJohn II ngo-1454, waqala ukuhlanganyela ngenkuthalo emzabalazweni wezikhulu owawulwa noHenry IV waseCastile. Ngo-1445, walwa eMpini Yase-  <response>: Impi Yokuqala Yase-Olmedo ngokumelene no-Alvaro de Luna owayesekela uHenry IV. Ngemva konyaka ngo-1465, wabamba iqhaza kulokho okwaziwa ngokuthi yi-Farce of Ávila lapho iqembu lezikhulu zaseCastilian labulala khona ngokomfanekiso uHenry IV futhi lamemezela ukuthi umfowabo, u-Alfonso waseCastile, owaziwa kangcono ngokuthi u-Alfonso the Innocent, uyinkosi esemthethweni. Lo mkhosi wabizwa ngokuthi i-Farce of Avila ngabagxeki banamuhla futhi igama liye langena emlandweni. Ngokubamba iqhaza kwakhe eFarce, wathola isihloko sikaConstable waseCastile 