Tharros (also spelled Tharras, , , Tárrai/Tárras; ) was an ancient city and former bishopric on the west coast of Sardinia, Italy. It is currently a Latin Catholic titular see and an archaeological site near the village of San Giovanni di Sinis, municipality of Cabras, in the Province of Oristano. It is located on the southern shore of the Sinis peninsula, which forms the northern cape of the Bay of Oristano, by the cape of San Marco. Tharros, mentioned by Ptolemy and in the Itineraries, seems to have been one of the most important places on the island. History Foundation Until some years ago, the archaeological findings in the area of Tharros supported the theory that Phoenicians founded the town in eighth century BC. The probability of this was reduced by the finding of some parts of the old settlement in the Mistras Lagoon. A submerged 100 m wall seems to be part of a port structure much older than the Phoenician one, since in 1200 BC sea level rose, swallowing the existing buildings. A previous nuragic settlement apparently existed there in the Bronze Age, as the nuragic presence near the tophet area seems to suggest. Thopeth Archaeologists found a tophet, an open-air sacred place common for several installations of Phoenicians in the western Mediterranean, on top of a hill called Su Muru Mannu near the remains of a village built by the Nuragic peoples (1900-730 BC). This is seen as a first sign of colonization and urbanization. Later history Excavations showed that from the 8th century BC until its abandonment in the 10th century Tharros was inhabited, first by Phoenicians, then by Punics and then by Romans. The town was the capital of the medieval Giudicato of Arborea, a Roman/Byzantine relict state from the 9th century until 1070 when Orzocorre I of Arborea relocated to Oristano under pressure of Saracen raiders. The town was effectively abandoned at this time or shortly thereafter. The site was then used for centuries as a quarry. An inscription records the repair of the road from Tharras to Cornus as late as the reign of Roman emperor Philip. The Antonine Itinerary correctly places it 18 miles from Cornus and 12 from Othoca (modern Santa Giusta near Oristano). However, its history during most of the period of Roman domination or early Christianity is unknown. Diocese Residential (arch)diocese The Diocese of Tharros was established around the