Wotton House (built 1704-14) was the second seat of the Grenvilles of Stowe and was usually occupied by the family's eldest son, the heir to the dukedom, known by the courtesy title of Marquess of Chandos. However, the third Duke of Buckingham, who had no children, continued to live there after he succeeded to the title in 1861 . He had been closely involved in the railways for some years, having been chairman of the London and North Western Railway 1853-61, a post that he took partly out of a need to restore his family's fortunes . The Brill Tramway was conceived for agricultural and industrial use on the estate.