Châteaudun is a commune in the Eure-et-Loir department in northern France. It is a sub-prefecture of the department. It was the site of the Battle of Châteaudun during the Franco-Prussian War.
Wikipedia https://en.wikipedia.org/wiki/Châteaudun
Official Website http://www.ville-chateaudun.com/
Coordinates 48°4'12.827" N 1°19'42.581" E
