 Thomas Watson-Wentworth bought the estate from the Knollys family in 1695 and built the present Hall between 1716 and 1719 for use as a Dower House.His son Thomas Wentworth (died 1750) who had become the 6th Lord Rockingham, was created Marquess of Rockingham in 1746.In 1782 Harrowden was inherited by William, Earl Fitzwilliam of Milton, and it descended in the Fitzwilliam family until it was sold in 1895 to the seventh Lord Vaux, a descendant of the earlier owners.