Niccolò di Raffaello di Niccolò dei Pericoli, called "Il Tribolo" was an Italian Mannerist artist in the service of Cosimo I de' Medici in his natal city of Florence.
Image of Niccolò Tribolo
Grotto of animals by Giambologna in the Villa di Castello, Florence
Exterior of the Villa di Castello in Florence
Cosimo I de' Medici was the second duke of Florence from 1537 until 1569, when he became the first grand duke of Tuscany, a title he held until his death.
Portrait of Cosimo I de' Medici, c. 1545
Cosimo I de' Medici at about 19 years of age (by Pontormo, c. 1538)
Cosimo I's coronation as Grand Duke of Tuscany, which happened in 1570, Rome.
Official portrait of Cosimo I de' Medici as Grand Duke of Tuscany by Giovanni Battista Naldini