Guy I (d. after 986), son of Herbert II, Count of Vermandois,[1] and Adele, daughter of Robert I of France.
Another source claims that Guy was the grandson of Herbert II, being the son of Adalbert I, Count of Vermandois, although there is no evidence that Adalbert was a Count of Soissons.
His name appears in a 974 charter in which Lothair of France confirmed the privileges of monastery of Saint-Thierry near Reims.
Guy founded the abbey at Saint-Quentin near Péronne, and visited Rome in the mid-980s.
Guy married Adelisa, the daughter of a Count Giselbert of which nothing is known.