 In 1478, he was awarded the Order of the Golden Fleece.He participated courageously in the Battle of Guinegate in 1479, where he was wounded, helping to beat the army of King Louis XI of France and keeping the County of Flanders for Mary.In 1484 Jacques of Savoy married Marie de Luxembourg (1462–1546), granddaughter of Louis of Luxembourg-Saint-Pol, Count of Saint-Pol.