Workshop of Agnolo di Cosimo called Il Bronzino, 16th century PORTRAIT OF GIOVANNI DE' MEDICI CALLED GIOVANNI DALLE BANDE NERE oil on panel, 65x51.5 cm Workshop of Agnolo di Cosimo called Il Bronzino, 16th century PORTRAIT OF GIOVANNI DE' MEDICI CALLED GIOVANNI DALLE BANDE NERE oil on panel, 65x51.5 cm