(b Burgdorf, Switzerland, bapt 18 Jan 1733; d London, 14 April 1794). Swiss painter and draughtsman, active in England. He studied in Berne under Johann Ludwig Aberli and became established as a painter of topographical views in oil and watercolour. His early surviving works (e.g. River Landscape and Landscape with Chasseurs; Basle, priv. col.) are principally tinted drawings of landscapes and alpine scenery, with scenes of rustic life in the foreground; they display his characteristically charming and informal style. He also produced many decorative book illustrations: the frontispiece and plates to Friedrich von Hagedorn’s Poetische Werke (1769–72) are among his finest. By 1764 Grimm had abandoned oils and was painting only in watercolour. From 1765 to 1768 he travelled and painted in France; he then moved to England, where he settled for the rest of his life.