San Giovanni Profiamma is a civil parish in the municipality of Foligno in the province of Perugia, which is also an active bishopric, and is the historical site of the former Roman town and bishopric of Foro Flaminii, which remains a Latin Catholic titular see as Foro Flaminio.
San Giovanni Profiamma is at an altitude of 264 m above sea level, 4 km northeast of Foligno and has a population of around 1800.
The town is attested as bishopric since the third century and believed to have been destroyed in 740 by the invading Lombards under King Liutprand, and subsequently incorporated into Foligno.
It remains unknown how much of the relatively old vita of the legendary first bishop and patron saint Felician of Foligno is historically accurate.
Only two bishops were historically documented : From a papal bulla by Pope Innocent II in 1138, on the jurisdiction of the (heir) bishops of Foligno, citing plebs S. Joannis de Foroflamini cum ecclesiis suis, Sbaraglia deduces Forum Flaminii's Ancient cathedral would have been dedicated to Saint John.