The early 19th century saw the abolition of feudalism and barony. At that time the "Giurati" or "Jury" was replaced with the "Decurionato", a group ten men elected by common people and approved by the king. After Italian unification, in 1860, the "Decurionato" was also abolished and replaced by a modern administrative system. The only exception was during the fascist period when the mayor was replaced by a "Podestà". San Gregorio took its name from its patron saint, Pope Gregory I.