Nadar - but who is the woman?

Nadar (1820-1910) or Gaspard Félix Tournachon is one of the greatest portrait photographers of all time.

He depicted Sarah Bernhardt, Delacroix, Charles Baudelaire to name a few. But, and this is interesting, he portrayed quite few women with a strange excuse; they were to beautiful to be photographed.

Kenneth Larsson found this portrait about 15 years ago at a flea market in Skellefteå in northern Sweden. But who is the woman? Please come up with some answers. I have great faith in you, dear viewers of 591 Photography.
Mr Urbano