Michelangelo
Michelangelo returned to Florence in 1499. The republic was changing after the fall of its leader, anti-Renaissance priest Girolamo Savonarola, who was executed in 1498, and the rise of the "gonfaloniere" Piero Soderini. Michelangelo was asked by the consuls of the Guild of Wool to complete an unfinished project begun 40 years earlier by Agostino di Duccio: a colossal statue of Carrara marble portraying David as a symbol of Florentine freedom to be placed on the gable of Florence Cathedral. Michelangelo responded by completing his most famous work, the statue of David, in 1504. The masterwork definitively established his prominence as a sculptor of extraordinary technical skill and strength of symbolic imagination. A team of consultants, including Botticelli and Leonardo da Vinci, was called together to decide upon its placement, ultimately the Piazza della Signoria, in front of the Palazzo Vecchio. It now stands in the Academia while a replica occupies its place in the square.
David (Bernini)
For one thing, the sculpture is no longer self-contained, but interacts with the space around it. Not since the sculptures of the Hellenistic period, such as the Winged Victory of Samothrace, had sculptures been involved in their surroundings like those of Bernini. A likely source for Bernini's figure was the Hellenistic Borghese Gladiator. Another difference lies in the moment that Bernini has chosen to depict. Michelangelo's "David" differs from those of Donatello and Verrocchio in that it shows David preparing for the battle, rather than victorious afterwards. Bernini, on the other hand, chose to portray David in the act of throwing the stone. This represented a novelty; throwing figures were extremely rare in post-Antiquity sculptures. The motion motif did exist in painting, however, and one example was Annibale Carracci's fresco of the Cyclops "Polyphemus" throwing a stone. Bernini is likely to have known Carracci's "Polyphemus"; not only was it to be found in the Galleria Farnese in Rome, but Carracci was the painter Bernini ranked as fourth among the greatest ever.