Mona Lisa
The painting is thought to be a portrait of Lisa Gherardini, the wife of Francesco del Giocondo, and is in oil on a white Lombardy poplar panel. It had been believed to have been painted between 1503 and 1506; however, Leonardo may have continued working on it as late as 1517. Recent academic work suggests that it would not have been started before 1513. It was acquired by King Francis I of France and is now the property of the French Republic, on permanent display at the Louvre Museum in Paris since 1797.
Mona Lisa
A version of the "Mona Lisa" known as the "Isleworth Mona Lisa" and also known as the "Earlier Mona Lisa" was first bought by an English nobleman in 1778 and was rediscovered in 1913 by Hugh Blaker, an art connoisseur. The painting was presented to the media in 2012 by the Mona Lisa Foundation. It is a painting of the same subject as Leonardo da Vinci's Mona Lisa. The painting is claimed by a majority of experts to be mostly an original work of Leonardo dating from the early 16th century. Other experts, including Zöllner and Kemp, deny the attribution.