William, Count of Luxembourg

first of his family to use the title count of Luxembourg in his documents (1081–1131)

Parents

• Clementia of Aquitaine
• Conrad I, Count of Luxembourg

Children

• Wilhelm von Gleiberg
• Conrad II, Count of Luxembourg
• Liutgard von Luxemburg

Siblings

• Matilda of Luxembourg
• Gerard II, Count of Guelders
• Yolande de Wassenberg
• Henry III, Count of Luxembourg
• Ermesinde of Luxembourg, Countess of Namur
• Judith of Guelders

Partners

• Liutgard of Northeim