What is Châteaudun?
[[File:Blason ville fr Châteaudun (Eure-et-Loir).svg|90px|thumb|Coat of arms]] '''Châteaudun''' is a [[Communes of France|commune]] in the [[Eure-et-Loir]] [[Departments of France|department]] in northern [[France]]. It is a [[sub-prefecture]] of the department. {{France-geo-stub}} {{DEFAULTSORT:Chateaudun}} [[Category:Communes in Eure-et-Loir]] [[Category:Subprefectures in France]]