Note:  Do not rely on this information. It is very old.

Bruni

Bruni, Leonardo, scholar, was born in 1369 at Arezzo, and is generally named, in consequence, Leonardo Aretino. He became in 1405 papal secretary, serving as such under four popes, and from 1427 till his death in 1444 was secretary to the Florentine republic. Besides his History of Florence and translations of leading Greek authors, he wrote biographies of Petrarch and Dante, and various other works of an historical character.