Mona Lisa
Acquired by King Francis I of France, the Mona Lisa is now the property of France. It is on permanent display in Paris at the Louvre museum. Millions of visitors come to Paris every year to see the enigmatic smile on Mona Lisa's lips. Giorgio Vasari, who was Leonardo's first biographer (a person who writes about the life of another person), thought the painting was of a person named Lisa Gherardini. Speculation over the painting's model was solved in 2008 by Dr Armin Schlechter, a manuscript expert. Notes discovered in Heidelberg University Library which were written by Agostino Vespucci, a Florentine city official, reinforced Vasari's earlier identification of the model. Lisa was the wife of Francesco del Giocondo a rich silk merchant, who lived in Florence.