Philippa of Luxembourg Countess consort of Holland, Zeeland, and Hainaut (1252–1311) Parents Margaret of Bar Henry V, Count of Luxembourg Children William I, Count of Hainaut John of Beaumont Isabelle of Avesnes Alice of Hainault Jan van Oostervant Mary of Avesnes Siblings Waleran I of Luxembourg, Lord of Ligny Henry VI, Count of Luxembourg Isabelle of Luxembourg Henri bâtard de Luxembourg Baudouin de Luxembourg Partners John I of Hainaut
