The Earl Fitzwilliam

copy of a portrait by John Hoppner
Charles William Wentworth-FitzWilliam

4 May 1786
Died4 October 1857(1857-10-04) (aged 71)
Alma materEton College (1802)
Hon. Mary Dundas
(m. 1806; died 1830)
Children13, including:

Charles William Wentworth Fitzwilliam, 5th Earl Fitzwilliam in the peerage of Ireland, and 3rd Earl Fitzwilliam in the peerage of Great Britain, KG (4 May 1786 – 4 October 1857) was a British nobleman and politician. He was President three times of the Royal Statistical Society in 1838–1840, 1847–1849, and 1853–1855; and President of the British Association for the Advancement of Science in its inaugural year (1831–2).

He was born the only son of William Fitzwilliam, 4th Earl Fitzwilliam and his first wife, Lady Charlotte Ponsonby. He was a pupil at Eton College from 1796 to 1802.

Before inheriting the Earldom on 8 February 1833 on the death of his father, he was known by the courtesy title of Viscount Milton. Under that name he was the Whig Member of Parliament for Northamptonshire between 1831 and 1832.

The family seat was Wentworth Woodhouse, reputedly the largest private house in England.


He married the Hon. Mary Dundas (30 May 1787 – 1 November 1830) on 8 July 1806; she was his cousin and the daughter of Thomas Dundas, 1st Baron Dundas and Lady Charlotte Fitzwilliam, the 4th Earl's sister. They had thirteen children:


Parliament of the United Kingdom Preceded byBryan CookeHenry Grattan Member of Parliament for Malton 1806–1807 With: Bryan Cooke Succeeded byThe Lord HeadleyRobert Lawrence Dundas Preceded byWilliam WilberforceWalter Ramsden Fawkes Member of Parliament for Yorkshire 1807–1830 With: William Wilberforce 1807–1812Viscount Lascelles 1812–1818James Stuart-Wortley 1818–1826William Duncombe 1826–1830Richard Fountayne Wilson 1826–1830John Marshall 1826–1830 Succeeded byWilliam DuncombeViscount MorpethRichard BethellHenry Brougham Preceded bySir James ScarlettSir Robert Heron, Bt Member of Parliament for Peterborough 1830 With: Sir Robert Heron, Bt Succeeded bySir Robert Heron, BtJohn Nicholas Fazakerley Preceded byViscount Howick Member of Parliament for Higham Ferrers 1831 Succeeded byCharles Pepys Preceded byWilliam Ralph CartwrightViscount Althorp Member of Parliament for Northamptonshire 1831–1832 With: Viscount Althorp Constituency abolished New constituency Member of Parliament for North Northamptonshire 1832–1833 With: Lord Brudenell Succeeded byLord BrudenellViscount Milton Peerage of Ireland Preceded byWilliam Fitzwilliam Earl Fitzwilliam 1833–1857 Succeeded byWilliam Wentworth-Fitzwilliam Peerage of Great Britain Preceded byWilliam Fitzwilliam Earl Fitzwilliam 1833–1857 Succeeded byWilliam Wentworth-Fitzwilliam Professional and academic associations Preceded byRichard Griffin, 3rd Baron Braybrooke President of the Surtees Society 1843–46 Succeeded byHenry Vane, 2nd Duke of Cleveland