Mona Lisa is a star. But who was she? “Over the past five centuries, that smile has been exploited and replicated in so many forms that the Mona Lisa has been transformed from a mere masterpiece into an international celebrity. And, like a Hollywood star, she now has to have her own bodyguards and lives behind triplex bullet-proof glass in a humidified, air-conditioned environment. Aside from the riddle of the smile, it’s the mystery of Mona Lisa’s identity that has inspired amateur art detectives all over the world. After centuries of uncertainty, a vitally important document has recently come to light in the Milan State Archive.” It suggests Mona Lisa’s identity.