Avignon (French pronunciation: [aviɲɔ̃]; Provençal: Avinhon in classical norm or Avignoun in Mistralian norm) is a commune in the Vaucluse department in southeastern France. The city is well known for its Palais des Papes (Palace of the Popes), where several popes and antipopes lived from the early 14th to early 15th centuries.The site of Avignon was settled very early on; the rocky outcrop (le Rocher les Doms) at the north end of the town, overlooking the Rhône River, may have been the site of a Celtic oppidum or hill fort. Avignon, written as Avennio or Avenio in the ancient texts and inscriptions, takes its name from the Avennius clan. Founded by the Gallic tribe of the Cavares or Cavari, it became the centre of an important Phocaean colony from Massilia (present Marseilles). Under the Romans, Avenio was a flourishing city of Gallia Narbonensis, the first Transalpine province of the Roman Empire, but very little from this period remains (a few fragments of the forum near Rue Molière). During the inroads of the Goths, it was badly damaged in the fifth century and belonged in turn to the Goths, the kingdoms of Burgundy and of Arles, in the 12th Century. it fell into the hands of the Saracens and was destroyed in 737 by the Franks under Charles Martel for having sided with the Arabs against him. Boso having been proclaimed Burgundian King of Provence, or of Arelat (after its capital Arles), by the Synod of Mantaille, at the death of Louis the Stammerer (879), Avignon ceased to belong to the Frankish kings.