Carpentras is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in southeastern France.It stands on the banks of the Auzon. As capital of the Comtat Venaissin, it was frequently the residence of the Avignon popes; the Papal States retained possession of the Venaissin until the French Revolution. Nowadays, Carpentras is a commercial center for Comtat Venaissin and is famous for the black truffle markets held from winter to early spring.HistoryCarpentras was a commercial site used by Greek merchants in ancient times, and known to Romans at first as Carpentoracte Meminorum, mentioned by Pliny, then renamed Forum Neronis ("Forum of Nero"); the city retains an impressive Roman triumphal arch, that has been enclosed by the bishops' palace, rebuilt in 1640, now a law court, and a machicolated city gate, the Porte d'Orange.For the history of the bishopric of Carpentras, see Ancient Diocese of Carpentras.