A previously unknown painting by Francisco de Goya has been found hidden underneath one of his masterpieces.
The Rijksmuseum in Amsterdam announced the unfinished work was discovered underneath Goya's Portrait Of Don Ramon Satue, using a new X-ray technique.
It is thought to depict a French general and may be Napoleon Bonaparte's brother, Joseph, who was King Of Spain from 1808-1813.
The BBC reports the new painting was revealed using a technique developed by the University of Antwerp and the Delft University of Technology.
The technique was successfully tried on a Van Gogh painting two years ago, revealing a portrait of a peasant woman behind the work Patch of Grass, from 1887.
The Napoleonic painting was beneath a portrait of a judge which is on display at Museum Boijmans Van Beuningen in Rotterdam.
Goya died in France in 1828