Isleworth Mona Lisa
According to Leonardo's early biographer Giorgio Vasari, Leonardo had started to paint "Mona Lisa" in 1503, but "left it unfinished". However, a fully finished painting of a "certain Florentine lady" surfaced again in 1517, shortly before Leonardo's death and in his private possession. The latter painting almost certainly is the one that now hangs in the Louvre. Based on this contradiction, supporters of the authenticity of the "Isleworth Mona Lisa" claim it is the unfinished "Mona Lisa", made at least partially by Leonardo, and the Louvre "Mona Lisa" a later version of it, made by Leonardo for his own use.
Culture of France
The Louvre in Paris is one of the most famous and the largest art museums in the world, created by the new revolutionary regime in 1793 in the former royal palace. It holds a vast amount of art of French and other artists, e.g. the Mona Lisa, by Leonardo da Vinci, and classical Greek Venus de Milo and ancient works of culture and art from Egypt and the Middle East.