Guy I of Luxembourg, Count of Ligny Count of St. Pol and Ligny (1340–1371) Parents Alix de Dampierre John I of Luxembourg, Lord of Ligny Children Joan, Countess of Ligny John of Luxembourg, Lord of Beauvoir André de Luxembourg Pierre de Luxembourg Waleran III of Luxembourg, Count of Ligny Marguerite de Luxembourg Siblings John of Luxembourg-Ligny Mary of Luxembourg Philipotte de Luxembourg Johanna of Luxembourg Partners Mahaut de Châtillon