Dear members,
I have a question concerning the following picture: Can anybody identify it without any doubt?

On the page of the "Réunion des Musees nationaux" it is identified as:
Numéro d'oeuvre :
RMN71621
Cote cliché :
00-004708
N° d’inventaire :
MV6555
Fonds :
Peintures
Description :
Frédéric-Napoléon, prince Bacciochi (fils d'Elisa Bonaparte et de Félix Bacciochi) (1814-1833) - en habit de "prince français" en 1819
Auteur :
Krafft Barbara, née Steiner (1764-1825) peintre , femme, autrichienne
Crédit photographique :
(C) Photo RMN - ©Franck Raux
Date :
1819
Technique/Matière :
huile sur toile
Hauteur :
1.700 m.
Longueur :
1.050 m.
Localisation :
Versailles, châteaux de Versailles et de Trianon
But I have doubts that this pictures really shows Frédéric Bacciochi, because there are other sources, where it is said that it shows Franz of Reichstadt (Napoleon II), the son of Napoleon I and Marie Louise and not Frederic, the son of Elisa Bonaparte and Felix Bacciochi. So I am quite confused now and don´t know, what is true. Does anybody of you know this picture?
As the artist Barbara Krafft was an austrian Lady I think it is rather unlikely that this pictures really shows Frederic, because he lived somewhere else, after the fall of the Napoleonic Empire. Reichstadt did live at the Austrian court, so I think it is rather possible that Krafft painted Reichstadt and not his cousin Fréderic, who lived in Italy after his uncles fall, I think. From the looking it´s hard to say, it could be Reichstadt, but as children it is possible that cousins can be similar...

Can any body help me? Does anybody of you know this picture? Why there are two completely different identifications?
I have been searching for a picture of Frédéric for quite a long time, so I think, it´s a pity that it might not be him.
What do you think?