Michelangelo
With the completion of the "David" came another commission. In early 1504 Leonardo da Vinci had been commissioned to paint "The Battle of Anghiara" in the council chamber of the Palazzo Vecchio, depicting the battle between Florence and Milan in 1440. Michelangelo was then commissioned to paint the "Battle of Cascina". The two paintings are very different: Leonardo depicts soldiers fighting on horseback, while Michelangelo has soldiers being ambushed as they bathe in the river. Neither work was completed and both were lost forever when the chamber was refurbished. Both works were much admired, and copies remain of them, Leonardo's work having been copied by Rubens and Michelangelo's by Bastiano da Sangallo.
Leda and the Swan (Michelangelo)
Several years passed without the commission being formalised until Michelangelo had to be in Ferrara in 1529 to inspect its city walls as "governor general of fortifications" for the Florentine Republic, ready for an expected Imperial siege. On that occasion the Duke held Michelangelo to his promise and according to Condivi and Vasari he produced the work when he returned to Florence in August 1530 after the city's fall, perhaps using the time he had to spend in hiding. It was a square work in tempera, representing Jupiter as a swan making love to a reclining Leda (based on a composition from ancient Roman gems and seals), an egg and Castor and Pollux as children.