Angelo Acciaioli the Elder

Angelo Acciaioli (1298–1357), called the Elder, was a Dominican friar of the Florentine Acciaioli family and a bishop who ended up governing a city. Bishop of Aquila from 1328, he became bishop of Florence in 1342 and early in his tenure led the plot against the tyrannical Duke of Athens, heading the Balìa of Fourteen after the duke was driven out in 1343.

A skilled diplomat, he went three times as the republic's envoy to the papal court at Avignon, in 1344, 1348 and 1351, and in 1349 Queen Joanna I made him chancellor of the kingdom of Naples.

He helped found the Studio Fiorentino and, with his cousin Niccolò, the Florence Charterhouse. In 1355 he gave up his diocese to become abbot of Monte Cassino, and he died in Naples in 1357.