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.
David with the Head of Goliath (Caravaggio, Vienna)
The model for David in both versions appears to be a more mature version of the pubescent Cupid of "Amor Vincit Omnia" and the Capitoline and Pamphilij "John the Baptist", all painted around 1602. The model for these works has been identified by some, most notably Peter Robb, as Cecco, a boy known to have been Caravaggio's servant in Rome in the early 17th century and believed by Robb to be identical with Cecco del Caravaggio, an artist active in Rome in the period 1610–1625 and painting very much in Caravaggio's manner. There is no record of Cecco having been with Caravaggio after the artist's flight from Rome in 1606.