Narbonne (/nɑːrˈbɒn/ nar-BON, US also /-ˈbɔːn, -ˈbʌn/ -BAWN, -BUN, French: [naʁbɔn] ; Occitan: Narbona [naɾˈβunɔ]; Latin: Narbo [ˈna(ː)rboː]; Late Latin: Narbona) is a commune in southeastern France, located in the Occitanie region. The city lies 849 km (528 mi) from Paris in the Aude department, of which it is a sub-prefecture. It is located about 15 km (9 mi) from the shores of the Mediterranean Sea and was historically a prosperous port. From the 14th century it declined following a change in the course of the river Aude. While it is the largest commune in Aude, the capital of the Aude department is the smaller commune of Carcassonne.