for castile, the revolt, which had nearly succeeded, had been a grave threat to alfonso's rule and had shaken his self-confidence. in the years after the rebellion, he accomplished little and, subsequently, rebellion began to foment among his nobles, including those who had taken refuge in granada. the presence of granada on his southern borders also complicated his efforts to launch a crusade in africa. the tribute payments from granada became both a source of income and a major problem, because the resulting inflation reduced the effective revenue of castilian nobles and made attracting settlers using payments more difficult. alfonso stayed in jerez until late 1268, overseeing the christian settlement of the territories and attempting to stem the inflation.