 Castilla–La Mancha was the region of many historical battles between Christian crusaders and Muslim forces during the period from 1000 to the 13th century.It was also the region where the Crown of Castile and Aragon were unified in 1492 under Queen Isabel and King Ferdinand.Castilla–La Mancha is the successor to New Castile ("Castilla la Nueva"), which in turn traces back to the Muslim Taifa of Toledo, one of the "taifas" of Al Andalus.