Trevignano Romano was an important Etruscan settlement, as evidenced by the various necropolises present for two miles behind the modern town. These ancient settlements left interesting findings, now preserved at the Museum of Archaeology. In 387 B.C. with the conquest of Veii and Caere, the Sabatino territory came under the control of the Romans, who built many villas. The one which is mainly linked to the history of Trevignano Romano is the house of the Gens Trebonia that, according to some, led to the name change from Sabate in Trebonianum from which the current Trevignano Romano.
Rich in its past, today Trevignano Romano welcomes visitors with its picturesque medieval village and a beautiful lakefront trees, ideal for relaxing walks.