Yves Chaudron clones of Leonardo's great portrait" while Valfierno made arrangements to steal the real painting. In the early hours of 21 August 1911, Louvre employee Vincenzo Peruggia and two accomplices carried the "Mona Lisa" out of the museum covered in a painter's smock. Decker asserts that six Chaudron copies had already been sent to the United States ahead of the theft and while the stolen original remained in France, Valfierno followed his fakes and sold each for up to 300,000. The original remained hidden for two years until Peruggia, presenting himself as Leonardo Vincenzo, tried to sell it in Florence, Italy.
Vincenzo Peruggia with banner headlines rejoicing its return and then returned to the Louvre in 1913. While the painting was famous before the theft, the notoriety it received from the newspaper headlines and the large scale police investigation helped the artwork become one of the best known in the world. Peruggia was released from jail after a short time and served in the Italian army during World War I. He later married, had one daughter, Celestina, returned to France, and continued to work as a painter decorator using his birth name Pietro Peruggia. He died on October 8, 1925 (his 44th birthday)