William Lascelles

William Saunders Sebright Lascelles PC (29 October 1798 – 2 July 1851) was a British politician and the second son of Henry Lascelles, 2nd Earl of Harewood.

On 14 May 1823, he married Lady Caroline Georgiana Howard (d. 1881), daughter of George Howard, 7th Earl of Carlisle and they had nine children:

*Henrietta Frances Lascelles (d. 1884), married William Cavendish, 2nd Baron Chesham and had issue.
*Georgiana Caroline Lascelles (d. 1911), married Charles William Grenfell, a grandson of William Molyneux, 2nd Earl of Sefton and had issue.
*Emma Elizabeth Lascelles (d. 1920), married Lord Edward Cavendish, son of William Cavendish, 7th Duke of Devonshire and had issue.
*Beatrice Blanche Lascelles (d. 1915), married Frederick Temple, Archbishop of Canterbury.
*Major Claude George William Lascelles (1831–1903), died unmarried.
*Edwin Lascelles (1833–1877), died unmarried.
*Mary Louise Lascelles (c. 1836–1917), died unmarried.
*Rt. Hon. Sir Frank Cavendish Lascelles (1841–1920), married Mary Emma Olliffe and had issue.
*Lt.-Col. Henry Arthur Lascelles (1842–1913), married Caroline Maria Gore, brother of Charles Gore and had issue.

William entered Parliament as Member for East Looe in 1826. He was subsequently MP for Northallerton from 1831 to 1832 and for Wakefield from 1837 to 1841 and also from 1842–1847. He was sworn of the Privy Council in 1847, made Comptroller of the Household, and returned for Knaresborough, which he represented until his death.