The national hero of Spain, at times he fought for Christian kingdoms & at other times for Muslim ones
| The Classroom | Synonym [PAR] Rodrigo Diaz de Vivar, also known as "El Cid," was a medieval Spanish military 
... who fought for both Christian and Muslim leaders at different points in his 
career, his ... one of two claimants for the throne of the Christian kingdom of Leon
-Castile.