Mona Lisa he stresses that the images never existed. Kemp is also adamant that Cotte’s images in no way establish the existence of a separate underlying portrait. On 21 August 1911, the painting was stolen from the Louvre. The theft was not discovered until the next day, when painter Louis Béroud walked into the museum and went to the Salon Carré where the "Mona Lisa" had been on display for five years, only to find four iron pegs on the wall. Béroud contacted the head of the guards, who thought the painting was being photographed for promotional purposes. A few hours later,
Vincenzo Peruggia forger Yves Chaudron to make copies of the painting so he could sell them as the missing original. The copies would have gone up in value if the original were stolen. This theory is based entirely on a 1932 article by former Hearst journalist Karl Decker in "The Saturday Evening Post". Decker claimed to have known "Valfierno" and heard the story from him in 1913, promising not to print it until he learned of Valfierno's death. There is no external confirmation for this tale. Vincenzo Peruggia Vincenzo Peruggia (October 8, 1881 – October 8, 1925) was an Italian thief, most