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
Also during this period, Michelangelo was commissioned by Angelo Doni to paint a "Holy Family" as a present for his wife, Maddalena Strozzi. It is known as the "Doni Tondo" and hangs in the Uffizi Gallery in its original magnificent frame, which Michelangelo may have designed. He also may have painted the Madonna and Child with John the Baptist, known as the "Manchester Madonna" and now in the National Gallery, London.