Guido Chiavelli

Guido Chiavelli, called Napolitano (c. 1325–1404), was a soldier and lord of Fabriano, a son of Alberghetto II, whose Neapolitan campaigns gave Guido his nickname. He was a businessman as much as a soldier: from 1359 he ran paper mills outside the city and pushed its manufacturing and trade, paper above all.

On 24 June 1378 he entered Fabriano with seven hundred knights and drove out the Da Varano garrison holding it for the pope. He first feigned an attack on the castle of Belvedere to draw off part of the garrison, entered by night, and when the rest were penned in the fortress had their cisterns drained until they surrendered.

Acclaimed defensor populi and apostolic vicar, he had the latter office confirmed by Pope Boniface IX in 1393. He enlarged the church of Santa Caterina, where he was later buried.