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.
Gerard de Lairesse for the decline in Dutch painting. Two hundred years after his death in 1711 the "Encyclopædia Britannica", 11th Edition (1911) gave no listing at all for De Lairesse, while devoting four pages of solid text to Rembrandt. Works by De Lairesse are now on display at many museums around the world, including the Rijksmuseum and Amsterdams Historisch Museum in Amsterdam, the Louvre in Paris, the Metropolitan Museum of Art in New York City, the National Gallery of Art in Washington, D.C., the National Portrait Gallery and Tate Gallery in London, and the Cleveland Museum of Art. In 2016-2017, an exhibition