Who painted the enigmatic Giustiniani Portrait?

It has divided leading experts in the art world, split for decades on which Renaissance master painted this young man’s portrait. But now the Royal Academy is relying on amateur enthusiasts to decide whether Giorgione or Titian created the central canvas in their upcoming Venetian collection.

Curators of the exhibition have asked the public to vote on the attribution of the painting, presenting evidence for and against two of Western art’s greatest masters as the possible creator of the enigmatic Giustiniani Portrait.