Question: Who is the maternal grandfather of William Ii, Duke Of Jülich?
Sentence (from "Reinald IV, Duke of Guelders and Jülich"): Reinald IV, Duke of Guelders and Jülich aka Reginald IV( – 25 June 1423) was the son of William II, Duke of Jülich and Maria of Guelders, daughter of Reinald II, Duke of Guelders.
Relevant evidence: No