Which book says the Mona Lisa is not in the Louvre?

It is said that Leonardo da Vinci's Mona Lisa is collected in the Louvre in Paris. However, there is a saying in the collection that it is not the Mona Lisa hanging in the Louvre, but the real Mona Lisa hanging on the wall of an apartment in London. Dr Pulitzer, the custodian of the apartment and the work, said that after the Mona Lisa was completed, the work was left in Lisa de Zogon's home. Later, another nobleman asked Da Vinci to paint a portrait of his mistress. The woman known as "La Gioconda" (meaning "smiling person") looks very much like the Mona Lisa. So the lazy Da Vinci changed the Mona Lisa's face into "Jokangda". After the painting was completed, the nobles abandoned La Qiaokangda and did not buy this painting. Later, at the invitation of Francis I, Leonardo da Vinci took the painting to France. Pulitzer said that what makes the Louvre more brilliant is the portrait of Gioconda. Mona Lisa was later exiled to England. At the beginning of this century, it was bought by william blake, a museum curator and art connoisseur, and later by a Swiss consortium, of which Pulitzer was a member. At the beginning of this century, many people copied and forged famous works of art on a large scale, so there is reason to suspect that the one in London is a fake. However, Dr. Pulitzer is convinced of the authenticity of his paintings. He confirmed through photomicrography that the fingerprints on this painting in London are the same as those on other works of Leonardo da Vinci. According to records, the Mona Lisa is younger 19 years old than La Giocondo, and was painted with a veil of mourning. Of the two paintings, only the one in London shows a young woman wearing a beautiful veil. Another evidence is that Raphael drew a sketch when Leonardo da Vinci painted this painting. There are two pillars behind the Mona Lisa in the sketch, which appear in the portrait of London, while the background of the Louvre painting is cliffs, paths, stone bridges, trees and flowing water. For hundreds of years, many collectors have claimed that they have the real Mona Lisa, and the number has reached as many as 60. More interestingly, the Bertrand Museum of Art in Maine received a Mona Lisa without a smile at 1984. It has been determined that this painting was indeed written by Leonardo da Vinci, and all the characters in the painting resemble the Mona Lisa. Experts speculate that this smiling Mona Lisa may be a manuscript drawn by the author at the same time. There is also a saying that the Mona Lisa in the Louvre is a fake, which is based on the theft in 19 1 1. The Mona Lisa was stolen in that theft. Two years later, it appeared in Italy, but the colonnade on both sides behind the Mona Lisa has been cut off. A few years later, the Mona Lisa was returned to the Louvre. However, many experts believe that this recovery is only a smoke screen. The real Mona Lisa has been bought by a rich collector, and what hangs in the Louvre is only a fake.