Sancho III of Castile King of Castile (1134–1158) Parents Berengaria of Barcelona Alfonso VII of Castile Children Alfonso VIII of Castile Siblings Stephanie Alfonso of Castile Ferdinand II of León Ferdinand of Castille Sancha of Castile, Queen of Navarre Alfonso of Castile Constance of León Sancha of Castile, Queen of Aragon Urraca of Castile, Queen of Navarre Garcia of Castile Partners Blanche of Navarre, Queen of Castile
