Poussin painting ‘copy’ to hang in main galleries with new label

The Triumph of Silenus was relegated to storerooms but new study casts it in a new lightIt was bought by the National Gallery in the 1820s as a painting by Nicolas Poussin, the 17th-century French master. But The Triumph of Silenus – a bacchanalian revel – has long been relegated to the storerooms, having been repeatedly rejected by some of the 20th-century’s foremost experts as a mere copy.Now doubts about the picture have been dispelled and it will hang in the main galleries