A rich Genoese merchant commissioned Donatello to execute his bust in bronze, of life size. When the work was completed, it was pronounced a capital performance, and Cosmo de' Medici, who was the friend of both parties, caused it to be placed in the upper court of the palace, between the battlements which overlook the street, that it might be seen by the citizens. When the merchant, unacquainted with the value of such works, came to pay for it, the price demanded appeared to him so exorbitant that he refused to take it, whereupon the mutter was referred to Cosmo.