William, Count of Luxembourg
William I, Count of Luxembourg was count of Luxembourg, in succession to his elder brother Henry III of Luxembourg. They were both sons of Conrad and Clementia of Aquitaine. William was the first of his family to use the title count of Luxembourg... Wikipedia
Born: 1081
Died: 1131 (age 50 years)
Grandchildren: Mechthild von Gießen, Robert I of Grandpré, and Henri III, Comte de Grandpré
Parents: Conrad I, Count of Luxembourg and Clementia of Aquitaine
Children: Conrad II, Count of Luxembourg, Liutgard von Luxemburg, and Wilhelm von Gleiberg
Partner: Liutgard of Northeim (1105–)