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.
Michelangelo
Pope Leo X died in 1521 and was succeeded briefly by the austere Adrian VI, and then by his cousin Giulio Medici as Pope Clement VII. In 1524 Michelangelo received an architectural commission from the Medici pope for the Laurentian Library at San Lorenzo's Church. He designed both the interior of the library itself and its vestibule, a building utilising architectural forms with such dynamic effect that it is seen as the forerunner of Baroque architecture. It was left to assistants to interpret his plans and carry out instruction. The library was not opened until 1571, and the vestibule remained incomplete until 1904.