Question: Who is Peter I, Count Of Urgell's paternal grandfather?
Sentence (from "Peter I, Count of Urgell"): Peter I  (February 23, 1187 - June 2, 1258) was the second son of King Sancho I of Portugal and his wife Dulce, infanta of Aragon, and would eventually become
Count of Urgell and Lord of the Balearic Islands.
Relevant evidence: Yes