Herbert IV, Count of Vermandois
Herbert IV of Vermandois, Count of Vermandois, was the son of Otto of Vermandois and Parvie.
Family and children
Herbert married Adele of Valois, daughter of Ralph IV of Valois and Adele of Bar-sur-Aube. They had:- Adelaide, Countess of Vermandois, - married first to Hugh Magnus, son of Henry I of France and younger brother of Philip I of France, and second to Renaud II, Count of Clermont-Beauvaisis.
- Odo I, Count of Vermandois
- Gerard