William Thomas Spencer Wentworth-FitzWilliam, 6th Earl FitzWilliam, KG (12 October 1815 – 20 February 1902) was a British peer and Liberal politician.
Born Viscount Milton, he was the second son of Charles Wentworth-FitzWilliam, 5th Earl FitzWilliam and his wife, Hon. Mary Dundas. He became Member of Parliament for Malton in 1837. Holding the seat until 1841, he later reclaimed it in 1846 and then sat for Wicklow from 1847 until 1857, the year he inherited his father's earldom.
On 10 September 1838, Lord FitzWilliam married Lady Frances Harriet Douglas, the eldest daughter of George Douglas, 17th Earl of Morton. They had fourteen children:
In 1857, Lord FitzWilliam was appointed Lord Lieutenant of the West Riding of Yorkshire, a Knight of the Garter in 1862 and a Yeomanry Aide-de-camp to Queen Victoria in 1884. Resigning from his lord lieutenancy in 1892 and ADC in 1894, he died in 1902. As his eldest son predeceased him, his titles passed to his grandson, William.
| Parliament of the United Kingdom | ||
|---|---|---|
| Preceded by John Ramsden John Childers |
Member of Parliament for Malton 1837 – 1841 With: John Childers |
Succeeded by John Childers Evelyn Denison |
| Preceded by John Childers Evelyn Denison |
Member of Parliament for Malton 1846 – 1847 With: Evelyn Denison |
Succeeded by John Childers Evelyn Denison |
| Preceded by Sir Ralph Howard William Acton |
Member of Parliament for Wicklow 1847 – 1857 With: William Acton 1847-1848 Sir Ralph Howard 1848-1852 William Wentworth-Fitzwilliam-Hume 1852-1858 |
Succeeded by William Wentworth-Fitzwilliam-Hume Lord Proby |
| Honorary titles | ||
| Preceded by The Earl of Harewood |
Lord Lieutenant of the West Riding of Yorkshire 1857–1892 |
Succeeded by The Earl of Scarbrough |
| Peerage of Ireland | ||
| Preceded by William Wentworth-FitzWilliam |
Earl FitzWilliam 1857–1902 |
Succeeded by William Wentworth-FitzWilliam |