Most famous image of JMW Turner not a self-portrait, says expert

Dr James Hamilton, a leading Turner expert, has claimed that the most famous portrait of JMW Turner—long believed to be a self-portrait and featured on the UK £20 banknote—is actually by the painter John Opie. Hamilton argues that the work, dated around 1799, was mistakenly included in the Turner Bequest after the artist's death in 1851, when his studio was in disarray and the attribution was never properly verified. He points to stylistic evidence, including Opie's characteristic use of dramatic light and shadow, and calls on Tate Britain to reattribute the painting.