Hugues (d. 989 or after), 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 Montagne-au-Perche and Count of Perche, and Mélisende. They had four children:
Hughes was succeeded by his wife Hildegarde, as Viscountess of Châteaudun, upon his death. It is likely that their son Hughes I assumed the role of Viscount of Châteaudun when he reached the age of maturity.
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Kerrebrouck, Patrick van., Nouvelle histoire généalogique de l'auguste maison de France, vol. 1: La Préhistoire des Capétiens, 1993.
Tout, Thomas Frederick, The Empire and the Papacy: 918-1273, Periods of European History, London: Rivingtons, 1932
Bury, J. B. (Editor), The Cambridge Medieval History, Volume III, Germany and the Western Empire, Cambridge University Press, 1922
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