The republic entrusted the work to the Florentine Verrocchio, who dying before the statue was completed begged the government to allow his pupil Lorenzo di Credi to carry it to a conclusion.
The greatest artists in metal laboured on it in succession, among them Orcagna, Ghiberti, Verrocchio, Ant.
Whole volumes might be devoted to the magnificent works in bronze produced by the Florentine artists of this century, works such as the baptistery gates by Ghiberti, the statues of Verrocchio, Donatello and many others, the bronze screen in Prato cathedral by Simone, brother of Donatello, in 1444-1461, and the screen and bronze ornaments of the tomb of Piero and Giovanni dei Medici in San Lorenzo, Florence, by Verrocchio, in 1472.
His father showed some of his drawings to an acquaintance, Andrea del Verrocchio, who at once recognized the boy's artistic vocation, and was selected by Ser Piero to be his master.
Verrocchio, although hardly one of the great creative or inventive forces in the art of his age at Florence, was a first-rate craftsman alike as goldsmith, sculptor and painter, and particularly distinguished as a teacher.