Peter II wanted to be on good terms with Pope Innocent III, since he wanted an annulment of his marriage with Maria of Montpellier, and needed the blessing of the Pope. The Pope solicited the hand of the Dowager Queen of Hungary for his pupil, the young King Frederick II, Holy Roman Emperor. The Aragonese King accepted the proposal; Constance left her mother and the abbey of Nuestra Senora and began her trip to Sicily (1208). She never returned to Aragon or saw her mother again. Sancha died shortly after the departure of her daughter.