Question: Who is the maternal grandfather of Peter I Of Aragon And Pamplona?
Sentence (from "Peter I of Aragon and Pamplona"): According to the medieval "Annales Compostellani" Peter was "expert in war and daring in initiative", and one modern historian has remarked that "his grasp of the possibilities inherent in the age seems to have been faultless."
Relevant evidence: No