He is well known to Dante students by his Dante; Life and Works (1891), and to the study of Italian history he has contributed Guelphs and Ghibellines (1903).
The Biblioteca Queriniana contains early MSS., a 14th-century MS. of Dante, &c., and some rare incunabula.
The students numbered between three and five thousand in the 12th to the 15th century, and in 1262, it is said, nearly ten thousand (among them were both Dante and Petrarch).
Gubbio was the birthplace of Oderisio, a famous miniature painter (1240-1299), mentioned by Dante as the honour of his native town (Purg.
This church crowns the Fontebranda hill above the famous fountain of that name immortalized by Dante, and in a steep lane below stands the house of St Catherine, now converted into a church and oratory, and maintained at the expense of the inhabitants of the Contrada dell' Oca.