Prado Museum in Paris , Madrid , reveals discovery of earliest known copy of ' `` Mona Lisa '' is thought to have been painted around the same time as Leonardo da Vinci 's original work . It will then go on display at the Louvre in March , as part of the `` Leonardo 's Final Masterpiece '' exhibition , which focuses on his work , `` The Virgin and Child with St . Anne . '' Portrait will be unveiled later this month , before joining temporary exhibition at the Paris , Louvre .
Prado Museum in Paris , Madrid , reveals discovery of earliest known copy of ' `` Mona Lisa '' is thought to have been painted around the same time as Leonardo da Vinci 's original work . Portrait will be unveiled later this month , before joining temporary exhibition at the Paris , Louvre .