Variant spellings: (1) Count von Calckreuth (2) Count von Kalkreuth (12 December 1766 – 27 March 1830). His full name is usually given as Heinrich Wilhelm Adolf (or Adolph), Graf (Count) von Kalckreuth, but he was also known as Hans Wilhelm Adolf (or Adolph), Graf von Kalckreuth. He was a Prussian diplomat and author. He wrote books on taxation, law, and on various philosophical topics, including the philosophy of law. For a list of some of his writings see: https://www.worldcat.org/wcidentities/viaf-269163381