Question: Which country John Of Luxembourg, Count Of Soissons's father is from?
Sentence (from "Louis of Luxembourg, Count of Saint-Pol"): Louis de Luxembourg, Count of Saint-Pol, of Brienne, de Ligny, and Conversano (1418 – 19 December 1475) belonged to the Ligny branch of the House of Luxemburg and was Constable of France.
Relevant evidence: Yes