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.
Louvre this treaty, Italian cities were required to contribute pieces of art and patrimony to take part in Napoleon's "parades of booty" through Paris before being put into the Louvre Museum. One of the most famous pieces taken under this program was the Horses of Saint Mark. The four antique bronze horses, which had adorned the basilica of San Marco in Venice after the sack of Constantinople in 1204, were brought to Paris to reside atop Napoleon's Arc du Carrousel in Paris in 1797. Several churches and palaces, including Saint Mark's Basilica, were looted by the French, which outraged the Italians