JEAN-PIERRE MULLER/AFP/Getty Images
In 1911, Leonardo Da Vinci's "Mona Lisa" was stolen from the Louvre by an Italian who had been a handyman for the museum. The now-iconic painting was recovered two years later.
courtesy Art Recovery
A statue called "Young Girl With Serpent" by Auguste Rodin was stolen from a home in Beverly Hills, California, in 1991. It was returned after someone offered it on consignment to Christie's auction house. Rodin, a French sculptor considered by some aficionados to have been the father of modern sculpture, lived from 1840 until 1917. His most famous work, "The Thinker," shows a seated man with his chin on his hand.
AFP/Getty Images
Picasso's "La Coiffeuse" ("The Hairdresser") was discovered missing in 2001 and was recovered when it was shipped from Belgium to the United States in December 2014. The shipper had listed the item as a $37 piece of art being sent to the United States as a Christmas present.
ANDREAS SOLARO/AFP/Getty Images
Italy's Culture Ministry unveils two paintings by the French artists Paul Gauguin and Pierre Bonnard on April 2, 2014. The paintings were stolen from a family house in London in 1970, abandoned on a train and then later sold at a lost-property auction, where a factory worker paid 45,000 Italian lira for them -- roughly equivalent to 22 euros ($30) at the time.
PAUL J. RICHARDS/AFP/Getty Images
A 19th-century Renoir painting was stolen from a US museum in 1951 and then bought at a flea market in 2010. A judge later ruled that it to be returned to the museum. The 5½-by-9-inch painting, titled "Landscape on the Banks of the Seine," was bought for $7 at a flea market by a Virginia woman.
Courtesy Interpol
Seven famous paintings were stolen from the Kunsthal Museum in Rotterdam, Netherlands, in 2012, including two Claude Monet works, "Charing Cross Bridge, London" and "Waterloo Bridge." The other paintings, in oil and watercolor, were Picasso's "Harlequin Head," Henri Matisse's "Reading Girl in White and Yellow," Lucian Freud's "Woman with Eyes Closed," Paul Gauguin's "Femme devant une fenêtre ouverte, dite la Fiancee" and Meyer de Haan's "Autoportrait."
New York County DA Office
A Salvador Dali painting stolen from a Manhattan art gallery by a man posing as a potential customer in 2012. It was later intercepted by customs police after it was sent back to the United States from Greece.
Courtesy wga.hu
In 1473, Hans Memling's "The Last Judgment" was stolen by pirates and became the first documented art theft.
Hulton Archive/Getty Images
Adam Worth, the inspiration for Sir Arthur Conan Doyle's diabolical character Moriarty, stole "Georgiana, Duchess of Devonshire," painted by Thomas Gainsborough in 1876.
REUTERS/Chris Pizzello /Landov
The Nazis plundered countless precious artworks during World War II, including "Adele Bloch-Bauer I," by Austrian artist Gustav Klimt, which was confiscated from the owner as he fled Austria.
REUTERS /PHILIP SEARS /LANDOV
Many works of art that were taken by the Nazis were never recovered. Others were returned after years of legal battles. "Christ Carrying the Cross," by Italian artist Girolamo de' Romani, was returned to its owner's family in 2012.
REUTERS/Handout /Landov
A version of Edvard Munch's "The Scream" was one of two paintings by the artist to be stolen from the Munch Museum in Oslo, Norway, in 2004.

Story highlights

French scientist Pascal Cotte claims to have found three hidden portrait underneath the "Mona Lisa"

"The results shatter many myths and alter our vision of Leonardo's masterpiece forever," he said

CNN  — 

The subtle smile of the “Mona Lisa” has enchanted the art world for more than 500 years. But does it belong to an entirely different woman?

French scientist Pascal Cotte says he has revealed three hidden paintings beneath the surface of Leonardo Da Vinci’s masterpiece – one of which is likely to be the real portrait of Lisa del Giocondo, the woman thought to be the subject of the painting.

The hidden picture shows a woman looking into the distance, with no trace of the characteristic smile. Cotte believes he has discovered the genuine portrait of Lisa del Giocondo, also known as Lisa Gherardini, the wife of a Florentine merchant.

“My scientific imagery technique (L.A.M.) takes us into the heart of the paint-layers of the world’s most famous picture and reveals secrets that have remained hidden for 500 years,” Cotte said in a statement. “The results shatter many myths and alter our vision of Leonardo’s masterpiece forever.”

02:31 - Source: CNN
A second Mona Lisa?

The scientist used a multispectral camera to project intense lights on to the painting while measuring the reflections. This helps expose what happened between the paint layers.

Art historian Martin Kemp was skeptical, despite recognizing Cotte’s techniques as “highly innovatory,” he told CNN.

“There are considerable changes during the course of the making of the portrait – as is the case with most of Leonardo’s paintings. I prefer to see a fluid evolution from a relatively straightforward portrait of a Florentine women into a philosophical and poetic picture that has a universal dimension.”

Art historian Andrew Graham-Dixon, who has made a BBC documentary about the discovery, believes this changes history. “It’s jawdropping,” he told CNN. “The Louvre are going to have to change their label.”

CNN’s Milena Veselinovic contributed to this report.