Rodrigo Diaz, the legendary warrior-knight of eleventh-century Castile known as El Cid, is remembered today as the Christian hero of the Spanish crusade who waged wars of re-conquest for the triumph of the Cross over the Crescent. He is still honored in Spain as a national hero for liberating the fatherland from the occupying Moors. Yet, as Richard Fletcher shows in this award-winning book, there are many contradictions between eleventh-century reality and the mythology that developed with the passing years.