La Bella Principessa - by Leonardo da Vinci

The small chalk drawing, formerly considered a 19th century artwork of German origin, was attributed to Leonardo da Vinci in 2008 by Alessandro Vezzosi, director of the Museo Ideale in Vinci, and reconfirmed in late 2009 by Leonardo scholar Martin Kemp, Emeritus professor of History of Art at the University of Oxford. Professor Kemp has renamed it La Bella Phncipessa because he believes the young woman in the portrait is possibly Bianca Sforza, daughter of Ludovico Sforza, II Moro, and his mistress Bernardina de Corradis. The drawing was found to have the imprint of a fingertip and palm print, which matches a fingertip imprint belonging to Leonardo da Vinci, found on the unfinished St Jerome painting.