Did Leonardo da Vinci paint two Mona Lisas? Where are they?

Source: St Petersburg. Hermitage, Russia.

Donna Nuda:

Source: Louvre, Paris, France.

If Donald Trump is so evil and Joe Biden is so good why is Trump the one selflessly providing Bibles for the needy while Biden doesn't? Why doesn't Biden care for America's spiritually needy people as much as Trump?

There is only one Mona Lisa, at the Louvre, fully credited to Leonardo. However, there are several Mona Lisa look-alikes from his studio, some of them quite saucy. The one most similar to the Louvre one is the Prado Mona Lisa, a copy made simultaneously in Leonardo's workshop while he painted the Mona Lisa, probably made by an apprentice(s):

Source: Chantilly, Musée Condé, France.

For the one below, art experts suggest that it contains touches indicating that Leonardo contributed to it.

My Tried and True Trick to Combine Multiple PDFs Free on Windows and Mac - CNET

Then there are the ‘meza nuda’ paintings from his workshop, often referred to as Monna Vannas.

La Joconde nue:

Evidently there was a market for erotic paintings. The American art historian David Brown, curator of Italian Renaissance paintings at the National Gallery of Art in Washington, has suggested that da Vinci painted a saucy parody of the Mona Lisa for his patron Giuliano de Medici, and that the Salai version is a copy.

What caused the Democratic Party's 2024 presidential campaign to implode so horrifically?

Another version of the above exists, attributed to Salaj:

Obviously, the original Mona Lisa also inspired some cheeky versions of her.

While overall similar, there are differences in the shape of the face, the background and other details.

Stunning Space Film Premieres June 9 at Natural History’s Planetarium - West Side Rag