Guy I , Vicount Of Troyes De Dampierre 
Guy I , Vicount Of Troyes' father was Thibaut De Dampierre Sur-L'Aube and his mother was Elizabeth de Monthlery. His paternal grandfather was Viter De Moeslain; his maternal grandparents were Milon , Viscount Of Troy De Monthlery and Lituaise , Viscountess Of Troyes De Troyes. He was an only child. He died in 1151.
They had a son named Guillaume.