Recent research of the "Young Mona Lisa" portrait revealed the same much older 60+ woman who was was originally painted and is now on Sub surface of the "Mona Lisa" painting now in the Louvre, also exists on the Sub surface of this recently proclaimed "Leonardo" portrait of the same woman, in the "Younger" version.

 

This further corroborates the above previous research that both these paintings were earlier created around 1493 in Leonardo's Studio in Milan, and that this old woman is almost certainly the 63 year old "Caterina", Leonardo's mother, who also lived in Milan at that time. Whereas the original panel portrait, now at the Louvre was painted by Leonardo and later "rejuvenated" in Florence circa 1503, to the more youthful 30 year old

seen at the Louvre today. This "Second version" on canvas was most probably painted at the same time

by Leonardo's companion "Salai", as the style of this original Sub surface portrait matches his traits and inferior rendering method, as demonstrated by the comparitive image of one of his other portraits Below.

 

As with Leonardo's original, this "version" of this same

60+ year old woman was also rejuvenated, probably in Florence around 1504,to an even younger 20 year old. However whether that was accomplished by Leonardo himself, or one of his best pupils, is the question to be decided, as the final "Surface image" we see today is

more profoundly renderered than Salai was capable of, as an example of Salai's distinctive work below proves.

 

Irrespective, this new research rewrites traditonal always unproven speculation as to her actual identity, and definitively confirms Leonardo's portrait of Lisa Giocondo is another portrait, now lost, whose whereabouts still remain unknown, but "Lisa" is quite certainly not the sitter seen in either of these portraits.