Geoffrey IV, Viscount of Châteaudun
It is not clear that Geoffrey was ever Viscount of Châteaudun, but some histories list him as such. The only record of him is various charters confirming donations to churches in the area. One intriguing reference is to his consent to freeing of the men of the church of Notre-Dame-de-Mondoubleau, which, according to Beauvais de Saint-Paul, released the servants of the parish from their bondage.
It is not known whether Geoffrey married or had issue.
The references in this article are unclear because of a lack of inline citations. (November 2016) (Learn how and when to remove this template message)
- Beauvais de Saint-Paul (1837). Essai historique et statistique sur le canton et la ville de Mondoubleau.
- Settipani, Christian (2000). Les vicomtes de Châteaudun et leurs alliés, dans Onomastique et Parenté dans l'Occident médiéval. Oxford, Linacre: Unit for Prosopographical Research.
- Les Vicomtes de Châteaudun. Europäische Stammtafeln (European Family Trees) (in German). III.
- Cawley, Charles, CENTRAL FRANCE, Medieval Lands database, Foundation for Medieval Genealogy,[self-published source][better source needed]