Aix-en-Provence (UK: /ˌɛks ɒ̃ prɒˈvɒ̃s/,^[2] US: /ˌeɪks ɒ̃ proʊˈvɒ̃s, ˌɛks -/,^[3][4] French: [ɛks ɑ̃ pʁɔvɑ̃s] (listen); Provençal: Ais de Provença in classical norm, or Ais de Prouvènço in Mistralian norm,^[a] 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 the subprefecture of the arrondissement of Aix-en-Provence, in the department of Bouches-du-Rhône, in the region of Provence-Alpes-Côte d'Azur. The population of Aix-en-Provence is of approximately 143,000. Its inhabitants are called Aixois or, less commonly, Aquisextains.