Tate Britain’s Turner show reveals an old master – though the Spectator didn’t think so at the time

Juvenilia is the work produced during an artist’s youth. It would seem logical to think, therefore, that an artist’s output during their old age would be classified as ‘senilia’. Yet no such word exists.

But how else to classify the three blockbuster exhibitions this year that deal with Matisse, Turner and Rembrandt’s late work? These titans produced some of their finest art during old age.