The Flemish artist Jean de Boulogne, known as Giambologna, was one of the finest sculptors of the Mannerist school who created his own personal style around an elegant and carefully studied formalism with refined and dynamically balanced figures. He studied in Antwerp in the workshop of Jean Dubroeuq and then lived in Rome from 1555 to 1557. From there he moved to Florence to live under the protection of Francesco dei Medici. He took part in the competition for the monumental fountain in
Piazza Signoria, which was only won by Florentine Bartolomeo Ammannati for his greater experience in practical execution. He later carried out the fountain of Neptune (possibly based on his rejected design in Florence) for Pope Pius IV in Bologna (1563-66).