What As a result of the crusade by Spanish knights the only part of Spain controlled by Muslims was .?

As a result of the Crusades by Spanish knights, the only part of Spain controlled by Muslims was the Kingdom of Granada. This last Muslim stronghold remained until it was captured by the Catholic Monarchs, Ferdinand and Isabella, in 1492, marking the end of Muslim rule in Spain. The Reconquista culminated in the unification of Spain under Christian rule and the establishment of a new era in the region.