Six ambassadors left Florence to visit the said Pope; namely: Lorenzo de' Medici, Messer Domenico Martegli, Messer Agnolo della Stuffa, Messer Bongianni Gianfigliazzi, Piero Minerbetti and Donato Acciaiuolo; and the said Pope made Piero Miberbetti a knight and he returned to Florence with this title.
Luca Landucci; "A Florentine Diary"; p. 10.