Barbarano Romano is a municipality in the province of Viterbo, whose village is located on a tufaceous shelf which has as its limits the confluence of two short tributaries of the Biedano stream. It is located within the Marturanum Regional Natural Park at 340 meters above sea level, and is 28.5 km from Viterbo and 72 km from Rome. It is hypothesized that this site was the site of a Bronze Age village, and in the Etruscan period the settlement of Marturanum settled in this area.
Certain news of its settlement dates back to the Middle Ages, a period during which it was the subject of contention between Rome and Viterbo. In the 14th century it became a fiefdom of the Anguillara family, then passed to the Orsini family and subsequently, in the 15th century, to the Borgia family. In the historic center, the village houses the Archaeological Museum. There are also numerous religious architectures.