William Thomas Spencer Wentworth-Fitzwilliam, 6th Earl Fitzwilliam (1815–1902)

Politician. MP for Malton, 1837–41 and 1846–7; for county Wicklow, 1847 and 1852–7. Lord Lieutenant for the West Riding of Yorkshire, 1857–92. Succeeded as sixth Earl Fitzwilliam in 1857.