Isleworth Mona Lisa
According to Leonardo's early biographer Giorgio Vasari, Leonardo had started to paint "Mona Lisa" in 1503, but "left it unfinished". However, a fully finished painting of a "certain Florentine lady" surfaced again in 1517, shortly before Leonardo's death and in his private possession. The latter painting almost certainly is the one that now hangs in the Louvre. Based on this contradiction, supporters of the authenticity of the "Isleworth Mona Lisa" claim it is the unfinished "Mona Lisa", made at least partially by Leonardo, and the Louvre "Mona Lisa" a later version of it, made by Leonardo for his own use.
Mona (name)
In northern Europe, where the name is much more popular, Mona is interpreted as a diminutive of Monika or, rarely, of Ramona or Simona. It is sometimes associated with the title of Leonardo da Vinci's painting Mona Lisa, although in that context the word Mona is actually a title rather than a name. The word mona also means "cute", "monkey" and "doll" in Spanish. In Sweden, Mona's name day is May 4.