About Marie-Jean-Léon, Marquis d'Hervey de Saint Denys
Marie-Jean-Léon Lecoq, Baron d'Hervey de Juchereau, Marquis d'Hervey de Saint-Denys (Chinese: ???; pinyin: Dé Liwén; 6 May 1822 – 2 November 1892) son of Alexandre Le Coq or Lecoq, Baron d'Hervey (1780-1844), and Mélanie Juchereau de Saint-Denys (1789-1844) was born on 6 May 1822.
D'Hervey was a French sinologist also known for his research on dreams.