The De comparatione rei publicae et regni (1489-1492) of Aurelio Lippo Brandolini (Diss. London, Warburg Institute).
"While at the court of king Matthias Corvinus in Hungary Brandolini began a dialogue De comparatione (etc.) in which the king, his son John Corvinus, and Domenico Giugni, a Florentine merchant in Buda, are interlocutors and in which the question "whether it is preferable to live in the best possible monarchy or the best republic" is debated. The dialogue is extant in two mss. in Florence in the Bibl. Laurenziana and in the Bibl. Riccardiana, and was printed in Hungary in the 19th. century".