The Bank of England polymer £20 note, to be introduced in 2020, will feature which person?

The Bank of England £20 note is a banknote of the pound sterling. It is the second highest denomination of banknote issued by the Bank of England. The current cotton note, first issued in 2007, bears the image of Queen Elizabeth II on the obverse and the image of Scottish economist Adam Smith on the reverse. Starting in 2020, the current note will be phased out, to be replaced by a polymer note featuring a portrait of artist J. M. W. Turner with a backdrop of "The Fighting Temeraire", which is one of his more famous paintings.

Joseph Mallord William Turner (23 April 1775 – 19 December 1851), known contemporarily as William Turner, was an English Romantic painter, printmaker and watercolourist. He is known for his expressive colourisations, imaginative landscapes and turbulent, often violent marine paintings.