Charles Watson-Wentworth, 2nd Marquess of Rockingham, styled The Honourable Charles Watson-Wentworth before 1739, Viscount Higham between 1739 and 1746, Earl of Malton between 1746 and 1750, and the Marquess of Rockingham from 1750, was a British Whig statesman and magnate, most notable for his two terms as Prime Minister of Great Britain. He became the patron of many Whigs, known as the Rockingham Whigs, and served as a leading Whig grandee. He served in only two high offices during his lifetime but was nonetheless very influential during his one and a half years of service.