He inherited an enormous estate from his father, which included eight stately homes and 200000 acres of land. William George Spencer Cavendish, the VI Duke of Devonshire. He served as the Lord Chamberlain of the Household to King William IV . .... Records in the Chatsworth archives show that purchases were made by the Duke from the following persons :- Henry Heuland, a leading mineral dealer of the day, in 1820, 1833, and again in 1834; Sir Alexander Crichton, a physician, ...