Herbert IV of Vermandois, Count of Vermandois, was the son of Otto of Vermandois and Parvie. Wikipedia
Born: 1028
Died: 1080 (age 52 years)
Great grandchildren: Eleanor, Countess of Vermandois, Elisabeth, Countess of Vermandois, Ralph II, Count of Vermandois, and more
Grandparent: Herbert III, Count of Vermandois
Grandchildren: Ralph I, Count of Vermandois, Elizabeth of Vermandois, Countess of Leicester, Mathilde de Vermandois, and more
Children: Odo I, Count of Vermandois and Adelaide, Countess of Vermandois
Parents: Otto, Count of Vermandois