William IV, Count of Jülich [SEP] date of birth
William IV, Count of Jülich
William IV, Count of Jülich (c. 1210 – 16 March 1278) 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. William succeeded his father as Count of Jülich under the guardianship of his uncle, Eberhard of Hengenbach. In the 1220s and early 1230s William greatly expanded his territory. In 1234 he fought in
of Jülich (d. 1360), a daughter of William V, Duke of Jülich
2. in 1381 Elisabeth of Sponheim-Sayn (d. 1416), a daughter of Count Simon III of Vianden
- Adolf III (1334 - 7 Sep 1394, Cleves), Archbishop of Cologne 1363-1364, later Count of Cleves and Count of the Marck
- Dietrich (1336-25 May 1406), bishop of Liège 1389, from which post he later resigned.
- Eberhard (1341-after 1360),