English painter, born near Hexham; was an artist of an ardent temperament and extraordinary imaginative power; his paintings, the first "Sadak in Search of the Waters of Oblivion," characterised as "sublime" and "gorgeous," were 16 in number, and made a great impression when produced; engravings of some of them are familiar, such as the "Fall of Babylon" and "Belshazzar's Feast" (1789-1854).