 Nyorai kupfuurira kweiyi ndima - Chibvumirano chorugare neCastile chakabatwa zvikurukuru kwamakore anenge makumi maviri. Muna 1248, Muhammad akaratidza kuzvipira kwake kuna Ferdinand nokutumira boka revarwi kuzobatsira vaCastilian kukunda Seville yaitongwa nevaMuslim. Muna 1252, Ferdinand akafa uye akatsiviwa naAlfonso X. Muna 1254, Muhammad akapinda Cortes, kana kuti gungano revaranda vaAlfonso, pamuzinda wamambo muToledo, kwaakadzokorora vimbiso yake yokuvimbika uye mutero pamwe chete nokuremekedza mwanasikana achangoberekwa waAlfonso Berengaria. Mukati mokutonga kwake, Alfonso akanga achifarira mamwe mabhizimisi - kusanganisira nhevedzano yemishandirapamwe isina kubudirira muMuslim North Africa - panzvimbo pokuvandudza kurwisana neGranada. Muhammad akasangana naAlfonso padare rake muSeville gore roga roga, uye akabhadhara mutero wake wegore negore. Muhammad akashandisa rugare rwakatevera kusimbisa umambo hwake hutsva. Kunyange zvazvo raiva duku, Granada rakanga rakapfuma uye raiva nevanhu vakawanda. Hupfumi hwaro hwaiva hwezvokurima, zvikurukuru sirika nemichero yakaomeswa; hwaitengeserana neItaly uye nechokuchamhembe kweEurope. Mabhuku echiIslam, unyanzvi uye kuvaka zvakaramba zvichikura. Makomo nomurenje zvinoparadzanisa umambo neCastile zvaipa dziviriro dzomusikirwo, asi zviteshi zvayo zvokumadokero nomugwagwa wokuchamhembe kwakadziva kumadokero waienda kuGranada zvakanga zvisingakwanisi kudzivirirwa. 