Vagnino Chiavelli

Vagnino Chiavelli, born Aldebrandino and known by the nickname Vagnino, was a nobleman of Fabriano and a son of Alberghetto I Chiavelli. After 1303 he acted for the Fabriano commune in buying feudal estates in its contado: in 1305 it paid twenty thousand pounds for the lands of the count of Rovellone's widow.

The purchases sparked a war with Jesi that ended in 1308 with the Peace of Fermo, which assigned the disputed fiefs, including Castelletta, to Fabriano. Vagnino died around 1310.