High Quality Content by WIKIPEDIA articles! Saint-Brieuc-des-Iffs (Breton: Sant-Brieg-an-Ivineg) is a commune in the Ille-et-Vilaine department in Bretagne in north-western France.Inhabitants of Saint-Brieuc-des-Iffs are called Briochins. Ille-et-Vilaine is a part of the current region of Brittany and is bordered by the departments of Manche to the north-east, Mayenne to the east, Maine-et-Loire to the south-east, Loire-Atlantique to the south, Morbihan to the south-west, and Côtes-d'Armor to the west and north-west. Also the English Channel (locally named la Manche in French) borders the department to the north.lle-et-Vilaine is a part of the current region of Brittany and is bordered by the departments of Manche to the north-east, Mayenne to