David (Michelangelo)
David is a masterpiece of Renaissance sculpture created in marble between 1501 and 1504 by the Italian artist Michelangelo. "David" is a marble statue of a standing male nude. The statue represents the Biblical hero David, a favoured subject in the art of Florence.
Leonardo da Vinci
In Cesena in 1502, Leonardo entered the service of Cesare Borgia, the son of Pope Alexander VI, acting as a military architect and engineer and travelling throughout Italy with his patron. Leonardo created a map of Cesare Borgia's stronghold, a town plan of Imola in order to win his patronage. Maps were extremely rare at the time and it would have seemed like a new concept. Upon seeing it, Cesare hired Leonardo as his chief military engineer and architect. Later in the year, Leonardo produced another map for his patron, one of Chiana Valley, Tuscany, so as to give his patron a better overlay of the land and greater strategic position. He created this map in conjunction with his other project of constructing a dam from the sea to Florence, in order to allow a supply of water to sustain the canal during all seasons.
Leonardo returned to Florence, where he rejoined the Guild of Saint Luke on 18 October 1503. He spent two years designing and painting a mural of "The Battle of Anghiari" for the Signoria, with Michelangelo designing its companion piece, "The Battle of Cascina". In Florence in 1504, he was part of a committee formed to relocate, against the artist's will, Michelangelo's statue of "David".