 The Basque language is widely spoken in the northern parts of Navarre, and is used by about 12% of the people of the province as a whole.Basque has declined in the central areas, and is not known to have ever been spoken in the southern half of Navarre, which is almost exclusively inhabited by speakers of Castilian.According to the "Ley Foral del Vascuence" ("Foral Law regarding Basque Language"), the province is divided into three linguistic areas