Question: Who is Arnold Iii, Count Of Looz's paternal grandfather?
Sentence (from "Diederik of Heinsberg, Count of Loon"): Diederik and Kunigunde had one son: Upon his death in 1361, Diederik ’s nephew and heir, Godfrey of Heinsberg, Lord of Daelenbroeck, claimed the counties of Loon and Chiny, while the Prince- Bishopric of Liège claimed it as fief of the church.
Relevant evidence: No