After the defeat of the Guelphs at Montaperti (1260), Latini went into exile in France but returned to Tuscany in 1266, holding public office for about 20 years from 1267 and becoming famous as a master of rhetoric. Between 1262 and 1266 he wrote a prose encyclopaedia in French, Li Livres dou Trésor, and an abridged version in Italian verse called the Tesoretto. His works profoundly influenced the young Dante, and, although he is depicted in the Inferno (XV, 30–124) as condemned for sodomy, the poet addresses him with great respect.