when was mona lisa painted

The Mona Lisa was painted by Leonardo da Vinci starting around 1503. It is believed to have been painted between 1503 and 1506, but Leonardo may have continued working on it intermittently until as late as 1517. He began the portrait of Lisa del Giocondo by October 1503 in Florence and likely added continuous retouches over the years, even taking it with him to France where he kept working on it. The painting was still in his studio when he died in 1519. Thus, the creation of the Mona Lisa spanned roughly from 1503 to possibly 1517 or 1519.