Question: Who is the paternal grandfather of Fadrique Alfonso, Lord Of Haro?
Sentence (from "Fadrique Alfonso, Lord of Haro"): Fadrique Alfonso of Castile, 1st Señor de Haro (1334–1358), 25th Master of the Order of Santiago (1342–1358), was the fifth illegitimate child of Alfonso XI of Castile and Eleanor of Guzman.
Relevant evidence: Yes