William IV, Count of Jülich
William IV, Count of Jülich was the son and heir of William III of Jülich and Mathilde of Limburg, daughter of Waleran III, Duke of Limburg.
William's father joined the Crusades in 1217 and died in the Siege of Damietta in 1218. Wikipedia
Born: 1210
Died: March 16, 1278 (age 68 years)
Great-grandparents: NN, Walter de Hengebach, and William I of Jülich
Parents: William III, Count of Jülich
Partner: Richardis of Geldern (1250–) and Margareta van Gelre (1237–)
Great grandchildren: Gerhard VI of Jülich, Count of Berg and Ravensberg, William II, Duke of Jülich, Elsa von Sayn, and more
Grandchildren: William V, Duke of Jülich, Johann von Jülich, Wilhelm III, Graf von Salm, and more