Hugh I, Viscount of Châteaudun
Hugues, Viscount of Châteaudun, son of Geoffrey I, Viscount of Châteaudun, and Ermengarde. Virtually nothing is known about his life.
Hughes married Hildegarde du Perche, daughter of Hervé I, Lord of Mortagne-au-Perche and Count of Perche, and Mélisende. They had four children:
- Hugues II de Châteaudun, Viscount of Châteaudun and Archbishop of Tours
- Adalaud, Seigneur de Château-Chinon
- Melisende, Viscountess of Châteaudun, married Fulcois, Count of Mortaigne, son of Rotrou, Seigneur de Nogent
- Daughter, married Albert II de la Ferté-en-Beauce, son of Albert I de la Ferté-en-Beauce and Godehildis de Bellême.