Career
He is the author of a prose narrative of the Trojan War entitled Historia destructionis Troiae ("History of the destruction of Troy," 1287), that was based on De excidio Trojae historia written by Dares Phrygius and Ephemeridos belli Trojani written by Dictys Cretensis. Dante (De vulgari eloquentia 25) named Guido as a poet in the vernacular, and in fact five poems by him in Italian survive.