Question: Who is Juan De La Cerda, 6Th Duke Of Medinaceli's paternal grandfather?
Sentence (from "Juan de la Cerda, 5th Duke of Medinaceli"): He was the son of Don Juan de la Cerda, 4th Duke of Medinaceli and of Joana Manuel, daughter of Sancho de Noronha, 2nd Count of Faro.
Relevant evidence: Yes