Brittany (French: Bretagne; Breton: Breizh) is a peninsula, historical country and cultural area in the north-west of France, covering the western part of what was known as Armorica during the period of Roman occupation. It became an independent kingdom and then a duchy before being united with the Kingdom of France in 1532 as a province governed as a separate nation under the crown.
It is bordered by the English Channel to the north, Normandy to the northeast, eastern Pays de la Loire to the southeast, the Bay of Biscay to the south, and the Celtic Sea and the Atlantic Ocean to the west.
Its land area is 34,023 km2.
Today, the historical province of Brittany is split among four departments: Finistère, Côtes-d'Armor, Ille-et-Vilaine, Morbihan
At the 2010 census, the population of historic Brittany was estimated to be 4,475,295.