Mona Lisa’s twin found

A Spanish museum has discovered a copy of Leonardo da Vinci’s ‘Mona Lisa’ that one of his students painted in the studio where the masterpiece was completed.

A spokeswoman for Madrid’s Prado said the copy was done alongside the 16th-century original, which now hangs in the Louvre in Paris.

The Prado said it did not realise the significance of its copy until a recent restoration revealed hidden layers.