Herbert IV, Count of Vermandois

Herbert IV of Vermandois (ca. July 20, 1028/1032–February 23, 1080) or Herbert V was French noble, from Herbertien dynasty. Count of Vermandois, was the son of Otto of Vermandois and Parvie (Pavia or Patia)^[1], descendant of Bernard of Italy, a grandson of Charlemagne.

Family and children

Adelaide, Countess of Vermandois, (b. Circa 1062 - d. September 23, 1120) - married first to Hugh Magnus,^[2] son of Henry I of France and younger brother of Philip I of France, and second to Renaud II, Count of Clermont-Beauvaisis. Adelaide had numerous children by both her husbands.
Odo I, Count of Vermandois^{[citation needed]} (b. circa 1064 - d. after 1085)
Gerard (b. 1066 - d. ?)

Odo inherited the countships of Vermandois and Valois upon his father's death.

^ Régine Le Jan, Famille et pouvoir dans le monde franc (VIIe-Xe siècle), (Publications de la Sorbonne, 2003), 322n, 535.
^ Suger, The Deeds of Louis the Fat, transl. Richard C. Cusimano and John Moorhead, (Catholic University of America Press, 1992), 191-192 note19.

Preceded by Otto	Count of Vermandois 1045–1080	Succeeded by Odo I
Preceded by Simon	Counts of Valois 1077–1080	Succeeded by Odo I