Archives départementales des Côtes-d'Armor

A service of the Conseil Général of the French Departement of Côtes-d'Armor, and the city of Saint-Brieuc. It is based in Saint-Brieuc.

Like a number of other Departement's archives if was founded under the law of 5 Brumaire, Year 5 (26 October 1976).

More information on the French Wikipedia page.

The website, in French, is.