Granville Leveson-Gower, 1st Marquess of Stafford, KG PC, known as Viscount Trentham from 1746 to 1754 and as The Earl Gower from 1754 to 1786, was a British politician from the Leveson-Gower family. Sitting in the House of Lords, he spent a quarter of a century in the Cabinet.

John Leveson-Gower, 1st Earl Gower, PC was an English Tory politician and peer who twice served as Lord Privy Seal from 1742 to 1743 and 1744 to 1754. Leveson-Gower also served in the Parliament of Great Britain, where he sat in the House of Lords as a leading member of the Tories, prior to switching his political affiliation and serving in various Whig-led government ministries until his death in 1754.