Question: Who is John Iii, Duke Of Cleves's paternal grandfather?
Sentence (from "John III, Duke of Cleves"): John I, Duke of Jülich-Berg; ; 10 November 1490 – 6 February 1538 or 1539) was a son of John II, Duke of Cleves and Mathilde of Hesse, daughter of Henry III, Landgrave of Upper Hesse.
Relevant evidence: Yes