Jacopo de' Gabrielli da Gubbio

Jacopo de' Gabrielli da Gubbio (1295–1363) was born at Gubbio, son of Cante Gabrielli, who as podestà of Florence sentenced Dante to exile. He became podestà of Bologna in 1327 but left rather than swear obedience to the cardinal who was making himself master of the city.

As Siena's war captain he subdued Grosseto and Massa Marittima. Florence made him Conservatore in 1335, and in 1337 he took Arezzo. His harsh and arbitrary rule won him the name of tyrant of Florence, and he was later said to have prepared the way for the Duke of Athens, who seized the city in 1342.

As Senator of Rome in 1338–1339 he restored the Milvian Bridge and other works wrecked by factional fighting. Cardinal Albornoz imprisoned him in 1355 after he refused to surrender a town; reconciled, he became governor of Faenza and Todi, and died in 1363.