Question: Who is Gonzalo Sánchez Of Aragon's paternal grandmother?
Sentence (from "Gonzalo Sánchez of Aragon"): Nothing else about the rule (or reign) of Gonzalo and Urraca is known, but the historian Gonzalo Martínez Díez supposed him to have been a "regulus" (sub-king) ruling Aragon under the ultimate authority of his brother in Pamplona and with the assistance of his experienced mother.
Relevant evidence: No