The Battle of Anghiari (Leonardo da Vinci)
In 1504 Leonardo da Vinci was given the commission by gonfaloniere Piero Soderini, a contract signed by Niccolò Machiavelli, to decorate the Hall of Five Hundred. At the same time his rival Michelangelo, who had just finished his "David", was designated the opposite wall. This was the only time that Leonardo da Vinci and Michelangelo worked together on the same project. The painting of Michelangelo depicted an episode from the Battle of Cascina, when a group of bathing soldiers was surprised by the enemy. However Michelangelo did not stay in Florence long enough to complete the project. He was able to finish his cartoon, but only began the painting. He was invited back to Rome in 1505 by the newly appointed Pope Julius II and was commissioned to build the Pope's tomb.
Michelangelo
In the same year, the Medici were expelled from Florence as the result of the rise of Savonarola. Michelangelo left the city before the end of the political upheaval, moving to Venice and then to Bologna. In Bologna, he was commissioned to carve several of the last small figures for the completion of the Shrine of St. Dominic, in the church dedicated to that saint. At this time Michelangelo studied the robust reliefs carved by Jacopo della Quercia around main portal of the Basilica of St Petronius, including the panel of "The Creation of Eve" the composition of which was to reappear on the Sistine Chapel ceiling. Towards the end of 1494, the political situation in Florence was calmer. The city, previously under threat from the French, was no longer in danger as Charles VIII had suffered defeats. Michelangelo returned to Florence but received no commissions from the new city government under Savonarola. He returned to the employment of the Medici. During the half year he spent in Florence, he worked on two small statues, a child "St. John the Baptist" and a sleeping "Cupid". According to Condivi, Lorenzo di Pierfrancesco de' Medici, for whom Michelangelo had sculpted "St. John the Baptist", asked that Michelangelo "fix it so that it looked as if it had been buried" so he could "send it to Rome ... pass [it off as] an ancient work and ... sell it much better." Both Lorenzo and Michelangelo were unwittingly cheated out of the real value of the piece by a middleman. Cardinal Raffaele Riario, to whom Lorenzo had sold it, discovered that it was a fraud, but was so impressed by the quality of the sculpture that he invited the artist to Rome. This apparent success in selling his sculpture abroad as well as the conservative Florentine situation may have encouraged Michelangelo to accept the prelate's invitation.