J.M.W. Turner's The Fighting Temeraire Tugged to her Last Berth to be Broken Up (1838) was his masterpiece. Sam Willis tells the real-life story behind this remarkable painting. The 98-gun Temeraire warship broke through the French and Spanish line directly astern of Nelson's flagship Victory during the Battle of Trafalgar (1805), saving Nelson at a crucial moment in the battle, and, in the words of John Ruskin, fought until her sides ran 'wet with...