William I of Dampierre

William I of Dampierre
Lord of Dampierre
Reignc. 1151 – c. 1174
PredecessorGuy I of Dampierre
SuccessorGuy II of Dampierre
Other titlesLord of Saint-Dizier, Moëslains et Saint-Just
Bornc. 1130
Diedc. 1174
Noble familyHouse of Dampierre
Spouse(s)Ermengarde de Toucy
IssueGuy II of Dampierre
Milon
Helvide
Elisabeth
Odette
FatherGuy I of Dampierre
MotherHelvide de Baudément

Guillaume I of Dampierre (c. 1130 - c. 1174) was Lord of Dampierre, Saint-Dizier, Moëslains and Saint-Just, Constable of Champagne and Viscount of Troyes in the middle of the 12th century. He was the son of Guy I of Dampierre, lord of Dampierre, and Helvide de Baudément.[citation needed]