Bartolommeo Bandinelli

Baccio Bandinelli (also called Bartolomeo Brandini; 12 November 1493 – shortly before 7 February 1560) was an Italian Renaissance sculptor, draughtsman, and painter.

Bandinelli was the son of a prominent Florentine goldsmith, and first apprenticed in his shop. As a boy, he was apprenticed under Giovanni Francesco Rustici, a sculptor friend of Leonardo da Vinci. Among his earliest works was a Saint Jerome in wax, made for Giuliano de' Medici, identified as Bandinelli's by John Pope-Hennessy.

Giorgio Vasari, a former pupil in Bandinelli's workshop, claimed Bandinelli was driven by jealousy of Benvenuto Cellini and Michelangelo; and recounts that:

(When) the cartoon of Michelangelo in the Council Hall ("Battle of Cascina" at Palazzo Vecchio) was uncovered, and all the artists ran to copy it, and Baccio (most frequently) among (them),... having counterfeited the key of the chamber. In... 1512, Piero Soderini was deposed and the... Medici reinstated. In the tumult, therefore, Baccio, being by himself, secretly cut the cartoon into several pieces.