Question: What is the date of death of Sancha Of Aragon, Countess Of Toulouse's father?
Sentence (from "Sancha of Aragon, Countess of Toulouse"): Sancha's paternal grandparents were Ramon Berenguer IV, Count of Barcelona and Petronilla of Aragon; her maternal grandparents were Alfonso VII of León and Castile and Richeza of Poland, Queen of Castile.
Relevant evidence: No