Aix-en-Provence (UK: , US: , French: [ɛks ɑ̃ pʁɔvɑ̃s] (); Provençal: Ais de Provença in classical norm, or Ais de Prouvènço in Mistralian norm, pronounced [ˈajz de pʀuˈvɛnsɔ]; Latin: Aquae Sextiae), or simply Aix (pronounced [ɛks]; medieval Occitan Aics), is a city and commune in Southern France, about 30 km (19 mi) north of Marseille. A former capital of Provence, it is in the region of Provence-Alpes-Côte d'Azur, in the department of Bouches-du-Rhône, of which it is a subprefecture. The population of Aix-en-Provence numbers approximately 143,000. Its inhabitants are called Aixois or, less commonly, Aquisextains.