John I, Lord of Ligny
John I of Luxembourg, was a Lord of Ligny, Beauvoir, Roussy and La Roche from the House of Luxembourg. He was a son of Lord Waleran II and his wife, Guyotte of Lille.
Around 1330 he married to Alix of Dampierre, the heiress of Guy of Dampierre-Richebourg. Their children were: