The historical province of Brittany is now split among five French departments: Finistère in the west, Côtes-d'Armor in the north, Ille-et-Vilaine in the north east, Loire-Atlantique in the south east and Morbihan in the south on the Bay of Biscay. Since reorganisation in 1956, the modern administrative region of Brittany comprises only four of the five Breton departments, or 80% of historical Brittany. The remaining area of old Brittany, the Loire-Atlantique department around Nantes, now forms part of the Pays de la Loire region.