 William Godolphin was now heir-apparent to his mother's dukedom as well as his father's earldom, and adopted the higher courtesy title of Marquess of Blandford.He returned to Parliament at the general election of 1727, being elected for Woodstock on 21 August.On 25 April 1729 Lord Blandford married Maria Catherina de Jong, the daughter of Peter de Jong, a mayor of Utrecht.