The history corner

A camp on a rocky spur   

On the borders of the Beauce and Perche regions along the picturesque river, the town of Châteaudun stands for the most part on the top of a hillside with steep limestone strata overlooking the river, giving it a defensive role from before the Roman conquest until the Fronde (17th century civil war in France). Because of this, its name is derived from an association of the Celtic word "Dun" meaning a high place, and the Latin word "castrum" meaning a fortified camp.
For more information...about Châteaudun