Giovanni di Cosimo de' Medici

• 
• Born on September 29, 1543 in Florence
• Deceased on November 20, 1562 in Livorno, at the age of 19 years

Parents

• Cosimo de' Medici, alias Cosme Ier de Toscane (1519 - 1574), Grand-duc de Toscane
• Leonor Álvarez de Toledo (1522 - 1562), duchessa di Firenze