(1519–1574) Duke of Florence (1537–1569) Grand Duke of Tuscany (1569–1574) Cosimo I de’ Medici in Art: Bronzino (1503-1572) Ritratto di Cosimo I de’ Medici 1537 Hermitage Museum, Saint Petersburg Bronzino (1503-1572) Cosimo I de’ Medici in armatura c.1545 Art Gallery of New South…