Overview
Giovanni di Cosimo I de' Medici (29 September 1543 – 20 November 1562), also known as Giovanni de' Medici the Younger, was an Italian cardinal.
Early years
He was born in Florence, the second son of Cosimo I de' Medici, Grand Duke of Tuscany, and Eleanor of Toledo. While his elder brother Francesco went on to a political and military career, Giovanni had reserved for him the ecclesiastical career.
He was the subject of two famous portraits by Bronzino, one as an infant and another of some years later, together with Eleonora of Toledo (although the subject of the latter has been identified also as Francesco or Garzia).
Aged only sixteen, after having already been made Archbishop of Pisa, Giovanni was created cardinal of Santa Maria in Domnica, by Pope Pius IV in the consistory of 31 January 1560.
From Wikipedia (CC BY-SA 4.0).