Ralph I, Count of Vermandois French count (1085–1152) Parents Adelaide, Countess of Vermandois Hugh I, Count of Vermandois Children Eleanor, Countess of Vermandois Ralph II, Count of Vermandois Elisabeth, Countess of Vermandois Felix of Valois Siblings Margaret of Clermont Elizabeth of Vermandois, Countess of Leicester Agnes de Vermandois Constance de Vermandois Mathilde de Vermandois Simon of Vermandois Partners Petronilla of Aquitaine Eleanor of Champagne Laurette of Flanders
