(b. 1503, Firenze, d. 1572, Firenze)
Cosimo I de' Medici in Armourc. 1550
Oil on wood, 114 x 89 cm
Museo degli Argenti, Florence
The painting is one of some twenty-five similar works mainly produced by Bronzino's workshop to be used as state portraits, based on a prototype, now in Sidney, dated 1544.