The name of Aretinus has been assumed by five or six natives of Arezzo in Tuscany, of whom the most famous and the most worthless lived in the xvith century. Leonardus Brunus Aretinus, the disciple of Chrysoloras, was a linguist, an orator, and an historian, the secretary of four successive popes, and the chancellor of the republic of Florence, where he died A.D. 1444, at the age of seventy-five (Fabric. Bibliot. Medii Aevi, tom. i. p. 190 etc. Tiraboschi, tom. vii. p. 33 - 38)