[Daffynition]

Thanks for the useful link.

**....the painting was re-examined in 2011 and found to have actually been painted on walnut wood.**

[snowsislander]

Thanks for the useful link.

**....the painting was re-examined in 2011 and found to have actually been painted on walnut wood.**

So the Prado Mona Lisa was painted on walnut?

Now that's interesting. Walnut, according to Mona Lisa: Inside the Painting, was actually Leonardo's preferred wood for painting, though the piece of poplar used for the Louvre's Mona Lisa was of course an outstanding instance of that wood.