Guy I of Dampierre (died 1151), son of Thibaut of Dampierre-sur-l’Aube and Elizabeth of Montlhéry, daughter of Milo I of Montlhéry,[1] Viscount of Troyes.

Guy travelled with Hugh I of Troyes on his pilgrimage to the Holy Land in 1125.

[3] Guy was associated with Barisan the Old, who travelled in the Holy Land with Hugh II of Le Puiset, as well as Hugh’s uncle Guy of Le Puiset.

[4] Helvide was the widow of Hugh of Chacenay, Seigneur de Montréal.

[4] After Guy’s death, Helvide became a nun at Jully-les-Nonnains.