Agnolo di Cosimo (Italian: [ˈaɲɲolo di ˈkɔːzimo]; 17 November 1503 – 23 November 1572), usually known as Bronzino (Italian: Il Bronzino [il bronˈdziːno]) or Agnolo Bronzino, was an Italian Mannerist painter from Florence. His sobriquet, Bronzino, may refer to his relatively dark skin or reddish hair.