I don't know much about the art world. I read from http://authenticationinart.org/pdf/artmarket/man-behind-cranach.pdf "The panel [Venus with a Veil (1531) attributed to Lucas Cranach], sold by Colnaghi gallery in London in 2013 for €7m to the Prince of Liechtenstein, is now under examination by the Centre de Recherche et de Restauration des Musées de France at the Musée du Louvre, where it can be studied alongside Cranach’s Three Graces, which was acquired by the Louvre in 2011 and bears the same date. The centre’s verdict should be provided soon to the judge."
May I ask what is the result of the examination? I cannot find much online about the results of this specific case. How can there be nothing on Wikipedia? I have tried searching to find more information about the specific painting. However, I am not very good with Google and either get irrelevant results or results about the seizure of the painting but not the investigation.