Cosimo I de' Medici, Grand Duke of Tuscany
Garzia de' Medici (July 5, 1547 – December 6, 1562) was the son of Cosimo I de' Medici, Grand Duke of Tuscany, and Eleanor of Toledo. He was the subject of a famous painting by Bronzino when he was an infant. He was born in Florence and died of malaria along with his mother while traveling to Pisa, a few days after his brother, Cardinal Giovanni, also died of the disease.