La Duchesse de Langeais is an 1834 novel by French author Honoré de Balzac (1799–1850) and included in the Scènes de la vie parisienne section of his novel sequence La Comédie humaine. It is part of his 1839 trilogy Histoire des treize: Ferragus is the first part, Part Two is La Duchesse de Langeais and Part Three is The Girl with the Golden Eyes. It first appeared in 1834 under the title Ne touchez pas la hache (Don’t Touch the Axe) in the periodical L'Écho de la Jeune France. Source: Wikipedia (en)