Dilettoso Chiavelli
Dilettoso Chiavelli (Dilettoso di Casaleta) was a clergyman of Fabriano from the Ghibelline Chiavelli family, the son of Casaleta di Alberghetto I. In 1359 he is recorded as a canon of the church of San Venanzio in Fabriano. His brother Gioioso Chiavelli became bishop of Camerino in 1356.