Alfonso VII of León and Castile
Some sources state that Peter died in 1157, sometime after King Alfonso VII of León and Castile died. This year of death is also likely since the third son, also named Peter, was born in 1158. It is certain that the elder son Peter was dead by 18 July 1164, as his mother abdicated in favour of his younger brother, Ramon, rather than Peter, who had been named heir of Aragon at birth. The "Corónicas Navarras" also stated that Peter died in Huesca.