The Marquess of Grafton is a title in the British peerage, created in 1782. The title is associated with the Grafton family, which has historical ties to the Duke of Grafton. The current holder of the title is the 17th Marquess, who succeeded in 2011. The Marquessate is part of the House of Lords, where hereditary peers can hold seats. The Grafton family has a rich history, with connections to various political and social events in British history, including involvement in the Whig party during the 18th century.