Speculations about Mona Lisa he had had no access to the actual painting, said that after "every laboratory test possible" in 2004 and 2009 that "no inscriptions, letters or numbers, were discovered during the tests." and that "The ageing of the painting on wood has caused a great number of cracks to appear in the paint, which have caused a number of shapes to appear that have often been subject to over-interpretation". Speculations about Mona Lisa The 16th-century portrait Mona Lisa, or "La Gioconda" ("La Joconde"), painted in oil on a poplar panel by Leonardo da Vinci, has been the subject of a considerable
Leonardo da Vinci as "Monna Vanna". Salai owned the "Mona Lisa" at the time of his death in 1524, and in his will it was assessed at 505 lire, an exceptionally high valuation for a small panel portrait. In 1506, Leonardo took on another pupil, Count Francesco Melzi, the son of a Lombard aristocrat, who is considered to have been his favourite student. He travelled to France with Leonardo and remained with him until Leonardo's death. Melzi inherited the artistic and scientific works, manuscripts, and collections of Leonardo and administered the estate. Despite the recent awareness and admiration of Leonardo as a scientist