Albi (Occitan: Albi [ˈalβi]) is a commune in southern France. It is the prefecture of the Tarn department. It is located on the River Tarn, c. 85 km northeast of Toulouse. Its inhabitants are called Albigensians (French: Albigeois, Albigeoise(s), Occitan: albigés -esa(s)). It was the seat of the Archbishop of Albi and is the seat of the Diocese of Albi. The episcopal city, situated in the center of the actual city, around the cathedral, was added to the UNESCO list of World Heritage Sites in 2010.