George Spencer, 4th Duke of Marlborough

The Duke of Marlborough
Lord Privy Seal
In office
1763–1765
MonarchGeorge III
Prime MinisterGeorge Grenville
Preceded byThe Duke of Bedford
Succeeded byThe Duke of Newcastle
Lord Chamberlain
In office
1762–1763
MonarchGeorge III
Prime MinisterThe Earl of Bute
Preceded byThe Duke of Devonshire
Succeeded byThe Earl Gower
Personal details
Born(1739-01-26)26 January 1739
Died29 January 1817(1817-01-29) (aged 78)
Blenheim Palace,
Woodstock, Oxfordshire
United Kingdom
Nationality United Kingdom
SpouseLady Caroline Russell
Children
Parents
Military service
Allegiance Great Britain (1755–1801)
 United Kingdom (1801–1817)
Branch/service British Army
Years of service1755–1760
RankCaptain
UnitColdstream Guards (1755)
20th Regiment of Foot (1756–1760)

George Spencer, 4th Duke of Marlborough, KG, PC, FRS (26 January 1739 – 29 January 1817), styled Marquess of Blandford until 1758, was a British courtier, nobleman, and politician from the Spencer family. He served as Lord Chamberlain between 1762 and 1763 and as Lord Privy Seal between 1763 and 1765. He is the great-great-great grandfather of Sir Winston Churchill.