Volsinii or Vulsinii (Etruscan: Velzna or Velusna; Greek: Ouolsinioi, ; ), is the name of two ancient cities of Etruria, one situated on the shore of Lacus Volsiniensis (modern Lago di Bolsena), and the other on the Via Clodia, between Clusium (Chiusi) and Forum Cassii (Vetralla). The latter was Etruscan and was destroyed by the Romans in 264 BC following an attempted revolt by its slaves, while the former was founded by the Romans using the remainder of the Etruscan population rescued from the razed city. Modern Bolsena, Italy, in the region of Lazio, descends from the Roman city. The location of the Etruscan city is debated. Umbrian Orvieto, about from Bolsena, is a strong candidate. Situation The Byzantine historian Joannes Zonaras states that the Etruscan Volsinii (Velzna or Velusna) lay on a steep height; while Bolsena, the representative of the Roman Volsinii, is situated in the plain. Scholars of the 19th century debated the location of this elevated site. Wilhelm Ludwig Abeken looked for it at Montefiascone, at the southern extremity of the lake; while Karl Otfried Müller believed it was at Orvieto, and adduced the name of that place in Latin, Urbs Vetus, the old city, as an argument in favour of his view; but British explorer and writer George Dennis was of the opinion that there was no reason to believe that it was so far from the Roman city, and that it lay on the summit of the hill, above the amphitheater at Bolsena, at a spot called Il Piazzano. He adduced in support of this hypothesis the existence of a good deal of broken pottery there, and of a few caves in the cliffs below. Bolsena is from Montefiascone, and from Orvieto. Fanum Voltumnae Fanum Voltumnae was the chief sanctuary of the Etruscans. Numerous sources refer to a league of the "Twelve Peoples" of Etruria, which met annually at the Fanum. The exact location of this shrine is still unknown, though it may have been in an area near modern Orvieto, believed by many to be the ancient Volsinii. Professor Simonetta Stopponi of the University of Macerata, an Etruscologist, has been excavating at Orvieto since 2000. She believes that Fanum was located at this site. An Etruscan substructure, datable to the 6th-4th centuries BC, has been uncovered. "Most impressive was the excavation of a round fountain area, on a slight rise above and overlooking the