und y , ▁she ▁was ▁the ▁sister ▁of ▁Alfonso ▁VII ▁of ▁León , ▁who ▁inherited ▁after ▁their ▁mother ' s ▁death ▁the ▁throne ▁of ▁Cast ile ▁and ▁León . ▁ ▁She ▁grew ▁up ▁with ▁her ▁mother , ▁along ▁with ▁her ▁a un ts , ▁the ▁infant as ▁San cha ▁and ▁El vi ra , ▁daughters ▁of ▁Alfonso ▁VI ▁of ▁León ▁and ▁Cast ile , ▁who ▁at ▁the ▁time ▁enjoyed ▁the ▁possession ▁of ▁the ▁Inf ant ado , ▁i . e . ▁a ▁set ▁of ▁monaster ies ▁and ▁churches ▁throughout ▁the ▁kingdom , ▁which ▁upon ▁the ▁death ▁of ▁the ▁own ers , ▁who ▁could ▁only ▁be ▁un mar ried ▁infant as , ▁revert ed ▁to ▁the ▁Crown , ▁as ▁in ▁the ▁case ▁of ▁Inf anta ▁San cha , ▁who ▁also ▁owned ▁Inf ant ados ▁in ▁the ▁kingdom s ▁of ▁Leon , ▁Cast ile ▁and ▁Gal icia . ▁ ▁Queen ▁Ur rac a , ▁her ▁mother , ▁died ▁in ▁ 1 1 2 6 ▁and ▁was ▁succeeded ▁by ▁her ▁son ▁Alfonso ▁VII ▁who ▁named ▁his ▁sister ▁San cha ▁queen , ▁a ▁preced ent ▁set ▁by ▁his ▁grand father ▁Alfonso ▁VI ▁when ▁he ▁con ferred ▁the ▁title ▁of ▁queen ▁to ▁Ur rac a ▁of ▁Zam ora , ▁his ▁sister . ▁Inf anta - Que en ▁San cha ▁then ▁became ▁one ▁of ▁the ▁closest ▁ad visor ▁and ▁collabor ator ▁of ▁her ▁brother ▁the ▁king ▁and ▁her ▁name ▁appear ▁in ▁nearly ▁all ▁of ▁her ▁brother ' s ▁public ▁documents . ▁ ▁In ▁ 1 1 2 7 ,