Tertius wrote:
Il semble que le dessin provient d'une recueil d'oeuvres possedees par les Sforza
http://m.lexpress.fr/pl/svt/si/lexpress ... /pa/240613I'm normally suspicious of this sort of thing but IMO the discovery of the missing page the Sforziada gives Kemp and the pro-Leonardo/Sforza faction the upper hand at this point. The age of the vellum eliminates the possibility of a mis-attributed German work of the 18th Century (which was one theory). The painting's apparent lack of age and provenance prior to the 20th Century remain a problem, but may possibly be explained if the picture remained between the pages of the book until recently and was thus somehow protected and that it was stolen fairly recently.
Father Silence