Eberhard of Limburg [SEP] father
Eberhard of Limburg
Eberhard of Limburg, count of Limburg (died before 1426), son of Dietrich III of Limburg, count of Limburg. 
He married Ponzetta von Saffenberg and they had issue:
- Wilhelm I of Limburg, count of Limburg (fl. 1422/98);
- Eberhard, a canon in Cologne (fl. 1450);
- Hermann (died 1489)
Literature.
- "Genealogische Handbuch des Adels", Gräfliche Häuser A Band II, 1955;
- W. Gf
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