English wine cask units the mediæval French and Italian "botte") or pipe was half a tun, or 1008 pints. Tradition has it that George, Duke of Clarence, the brother of Edward IV of England, was drowned in a butt of malmsey on 18 February 1478. (However, Josephine Tey in "The Daughter of Time" suggests that "drowned in a butt of malmsey" means rather that George, Duke of Clarence, drank himself to death rather than literally drowning in a container of wine.) In Edgar Allan Poe's short story "The Cask of Amontillado", the narrator claims he has received "a pipe of what passes for Amontillado".
George Plantagenet, 1st Duke of Clarence Edward was so harsh with his brother is because he had discovered from Bishop Robert Stillington of Bath and Wells, that George had let slip the secret of Edward's pre-contract marriage with Lady Eleanor Talbot. Although legend claims Richard III had brought about his brother's death, the opposite is true—he tried to prevent it. Clarence is a principal character in two of William Shakespeare's history plays: "Henry VI, Part 3" and "The Tragedy of Richard III." Shakespeare portrays Clarence as weak-willed and changeable, his initial defection from Edward IV to Warwick is prompted by outrage at Edward IV's unwise marriage