Serving under the Ghibelline chief, Uguccione della Faggiuola, he was elected lord (as lifelong consul) of Lucca on June 12, 1316, displacing  the Quartigiani family, and was appointed Duke of Lucca, Pistoia, Volterra and Luni by emperor Frederick of Austria. In the following generation the power of the family collapsed in the general success of the Guelfs.
Serving under Uguccione della Faggiuola, he was elected lord (as lifelong consul) of Lucca on June 12, 1316, and replaced the Quartigiani family. He was also appointed Duke of Lucca, Pistoia, Volterra, and Luni by Emperor Frederick of Austria. In the succeeding generation, the family's power diminished due to the Guelfs' success.