Bassano Romano is a town and comune situated in the hills of Monti Sabatini in the province of Viterbo, in northern Lazio.
With its origins about 1000 as the agricultural hamlet of Bassano di Sutri the village's future was founded in 1160 by the wealthy landowner Enotrio Serco, who initiated the construction at the top of the slope of a fortified residence that over the centuries became a princely dwelling, frescoed by famous artists. In 1482 Pope Sixtus IV assigned the Foedus Bassani to the Anguillara, Roman patricians.
Wikipedia https://en.wikipedia.org/wiki/Bassano_Romano
Coordinates 42°13'6.21" N 12°11'34.822" E