Canonist, born near Florence, Italy c.1275;died Bologna, Italy, 1348. He was educated at the University of Bologna, taught at Padua and Pisa, and became professor of canon law at Bologna. Works: Glossary of the Six Books of decretals; Glossary of the Clementine books; Treatise, or Commentary on the decretal letters of Gregory IX; Mercuriales, or commentary on the six rules; Book of the praises of Saint Jerome; Addenda to the Speculum of Durandus.