The name Tre Ponti/Tripontium is ancient, and serves as a reminder of an old coaching inn, the seventh along the Appian Way as one travels south from Rome. In more recent times it served the public postal service of Tripontium (three bridges), so named because of a three-span bridge which once stood on the site. The bridge was built as part of reconstruction works along this stretch of the Appian Way undertaken in circa AD 97 by the little-known Emperor Nerva.
These were concluded by his successor the Emperor Trajan, as can be verified by the milestone visible in front of the present church of S. Paolo in the village of Tor Tre Ponti.
Tor Tre Ponti is referred to in Medieval records and in historic maps relating to the reclamation of the Pontine marshes. These also reveal the presence of a fortified tower overlooking the ancient road, built to control and protect not only the thoroughfare itself but also a municipal mill, and the lands and the fishery of the monastery of Santa Maria Tre Ponti.
These were concluded by his successor the Emperor Trajan, as can be verified by the milestone visible in front of the present church of S. Paolo in the village of Tor Tre Ponti.
Tor Tre Ponti is referred to in Medieval records and in historic maps relating to the reclamation of the Pontine marshes. These also reveal the presence of a fortified tower overlooking the ancient road, built to control and protect not only the thoroughfare itself but also a municipal mill, and the lands and the fishery of the monastery of Santa Maria Tre Ponti.