¬†¬†The city of Tarquinia (Tarquinii in Latin and Tarch in Etruscan, obtained from the mythical Tarconte ) was one of the oldest and most important settlements of the twelve Etruscan.
¬†¬†In connection with Rome since very ancient times, gave this city the dynasty of Etruscan kings (Tarquinius Priscus, Servius Tullius and Tarquinius Superbus) who played a major role in the history of Latin city (late the seventh and sixth centuries BC).
¬†¬†Tarquinia entered more than once at war with Rome, and this was finally subdued, after the battle of Sentinum, at the beginning of the third century BC in 295 B.C. Since then Tarquinia was part of the Roman territories in the royal VII Etruria. On its coast developed the maritime colony of Gravisca, that until the founding of Centumcellae (Civitavecchia today) by the Emperor Trajan in the second century after Christ,
It was the main port in southern Etruria, abandoned following the raids of the Saracen pirates in the early Middle Ages.
¬†¬†In the fifth century it came under the reign of the Roman-Gothic Theodoric. In the first half of the sixth century it was involved in the Gothic war, and in the second half of the century it became part of the Lombard Duchy of Tuscia. In the second half of the eighth century Tuscia was first acquired domains Carolingian and later donated to Pope as part of the newly formed State of the Church.