Question: Who is Blanche Of Portugal (1259–1321)'s paternal grandfather?
Sentence (from "Afonso III of Portugal"): Afonso III (rare English alternatives: "Alphonzo" or "Alphonse"), or "Affonso" (Archaic Portuguese), "Alfonso" or "Alphonso" (Portuguese-Galician) or "Alphonsus" (Latin), the Boulonnais (Port. "
Relevant evidence: No