On the territory, as in much of Tuscia, many evidence of Etruscan and Imperial age were found.
Some remains of an ancient country house, dating from the third or fourth century P.C. are the demonstration of the agricultural and social life of the time, when the Roman landlordism completely replaced the Etruscan economy.
The origins of the real village date back to the sixteenth century, when Pope Leo X granted it and some surrounding territories to Renzo da Ceri, a member of the AnguillaraOrsini family, as a reward for the services he rendered to the Church.
The area then started to repopulate thanks to numerous settler families. Later, for lack of heirs, the city returned among the possessions of the Apostolic Chamber which gave it for rent.
Around the seventeenth century the settlement became a municipality under the name of St. John of Bieda, name that will be maintained until 1961 when it will be transformed in Villa San Giovanni in Tuscia.
The city is a splendid example of medieval village. Defined by a main road flanked by two secondary parallel streets, from which it is accessed through the Roman gate that opens on sturdy fortified walls with round and square towers.
