William Fitzwilliam, 4th Earl Fitzwilliam

The Earl Fitzwilliam
Portrait by William Owen, 1817
Earl Fitzwilliam
In office
10 August 1756 – 8 February 1833
Preceded byWilliam Fitzwilliam
Succeeded byCharles Wentworth-Fitzwilliam
Lord Lieutenant of Ireland
In office
13 December 1794  13 March 1795
MonarchGeorge III
Prime MinisterWilliam Pitt the Younger
Preceded byThe Earl of Westmorland
Succeeded byThe Earl Camden
Lord President of the Council
In office
1 July  17 December 1794
MonarchGeorge III
Prime MinisterWilliam Pitt the Younger
Preceded byThe Earl Camden
Succeeded byThe Earl of Mansfield
In office
19 February  8 October 1806
MonarchGeorge III
Prime MinisterLord Grenville
Preceded byThe Earl Camden
Succeeded byViscount Sidmouth
Personal details
BornWilliam Wentworth-Fitzwilliam
(1748-05-30)30 May 1748
Died8 February 1833(1833-02-08) (aged 84)
NationalityBritish
Political partyWhig
Spouses
Lady Charlotte Ponsonby
(m. 1770; died 1822)
    Hon. Louisa Molesworth
    (m. 1823; died 1824)
    ChildrenCharles Wentworth-Fitzwilliam, 5th Earl Fitzwilliam
    Parents

    William Wentworth-Fitzwilliam, 4th Earl Fitzwilliam PC (30 May 1748 – 8 February 1833), styled Viscount Milton until 1756, was a British Whig statesman of the late 18th and early 19th centuries. In 1782 he inherited the estates of his uncle Charles Watson-Wentworth, 2nd Marquess of Rockingham, making him one of the richest people in Britain. He played a leading part in Whig politics until the 1820s.