What happened 1503 AD

By this same month, Leonardo had begun working on a portrait of Lisa del Giocondo, the model for the Mona Lisa, which he would continue working on until his twilight years.

A prevalent tradition in Florence was the small altarpiece of the Virgin and Child. Many of these were created in tempera or glazed terracotta by the workshops of Filippo Lippi, Verrocchio and the prolific della Robbia family. Leonardo's early Madonnas such as The Madonna with a carnation and the Benois Madonna followed this tradition while showing idiosyncratic departures, particularly in the latter in which the Virgin is set at an oblique angle to the picture space with the Christ Child at the opposite angle. This compositional theme was to emerge in Leonardo's later paintings such as The Virgin and Child with St. Anne.

Leonardo had left Borgia's service and returned to Florence by early 1503, where he rejoined the Guild of Saint Luke on 18 October of that year.

The Italian Duke of Milan, Bona, passed away at the age of 54.