Ancient Roman historian Livy mentions a Samnite village called Cominium Ocritum, which was crossed by Hanno, Hannibal's general, in the course of the Second Punic War; this could be identified with modern Monteverde. The nameCominium was a common toponym of the Oscans, to which the Samnites belonged, perhaps related to people's meeting places (comitia).
In the 11th century AD, it became a bishopric seat and had a bishop until 1531, when the diocese of Monteverde was merged with the diocese of Canne. From 1532 to 1641 it was a baronal seigniory, held by a branch of the Grimaldi family. The diocese was eventually cancelled in 1818.