TonquédecTonquédec is a commune in the Côtes-d'Armor department of Brittany in northwestern France.WWW tonquedec.frPopulationInhabitants of Tonquédec are called tonquédois in French.Breton languageMost of the inhabitants speaking Breton, the municipality launched a Breton linguistic plan through Ya d'ar brezhoneg on 23 May 2006.Sister CityCorofin, County Clare