Question: Who is the paternal grandfather of John Of Valois, Count Of Montpensier?
Sentence (from "John, Duke of Berry"): John of Berry or John the Magnificent (French: "Jean de Berry"; 30 November 1340 – 15 June 1416) was Duke of Berry and Auvergne and Count of Poitiers and Montpensier.
Relevant evidence: No