 Ramba uchinyora ndima iyi - Kunzwa kwakashata pakati pababa nomwanakomana kwakawedzera apo muna 1447 John akatora mudzimai wake wechipiri Juana Enriquez, mukadzi wechiCastilian anokudzwa wemutsara wemadzimai kubva kumadzimambo eCastilian, uyo akakurumidza kumuberekera mwanakomana, gare gare Ferdinand II weAragon, uye uyo aiona mwanakomana wake wokurera semunhu anopindira. Apo Joanna akavamba kupindira muzvinhu zvomukati zveNavarre, hondo yavagari vemokwakatanga, uye muna 1452 Charles, kunyange zvazvo akabetserwa naMambo John II weCastile, akakundwa ndokutorwa senhapwa. Asunungurwa pashure pokuvimbisa kusatora zita roumambo kutozosvikira pashure porufu rwababa vake, muchinda, zvakare asina kubudirira mukukumbira zvombo, akapotera muNaples naMambo Alfonso V weAragon. Muna 1458 Alfonso akafa uye John akava mambo weAragon, nepo Charles akapiwa korona dzeNaples neSicily. Akaramba zvikumbiro izvi, uye pashure pokuyananiswa nababa vake akadzokera kuNavarre muna 1459. Achida kuroora Isabella weCastile, akaiswa mujeri nababa vake, uye vaCatalan vakamukira. Kumukira uku nokukurumidza kwakava kwakapararira uye Johane akamanikidzirwa kutera. Akasunungura mwanakomana wake, ndokumuziva somubati ushe wenguva dzose weCatalonia, uye mugari wenhaka youmambo. 