John Opie, Portrait of Thomas Girtin (1775–1802), c.1800. National Portrait Gallery, London.Jedburgh Abbey from the River (1798-99, watercolour on paper).
Thomas Girtin (18 February 1775 – 9 November 1802) was an Englishwatercolourist and etcher. A friend and rival of J. M. W. Turner, Girtin played a key role in establishing watercolour as a reputable art form.