- William Cavendish, 4th Duke of Devonshire
Infobox Prime Minister
name=The Duke of Devonshire
honorific-suffix = KG, PC
order=Prime Minister of Great Britain
term_start =16 November 1756
term_end =25 June 1757
monarch =George II
predecessor =The Duke of Newcastle
successor =The Duke of Newcastle
birth_date =8 May 1720
death_date =death date|1764|10|2|df=y
William Cavendish, 4th Duke of Devonshire, KG, PC (8 May 1720 [ [http://www.familysearch.org/Eng/Search/frameset_search.asp?PAGE=igi/search_IGI.asp&clear_form=true William Cavendish baptismal record] at
FamilySearch.Verify credibility|date=July 2008 ] – 2 October 1764), styled Lord Cavendish before 1729 and Marquess of Hartington between 1729 and 1755, was a British Whig statesmanwho was briefly titular Prime Minister of Great Britain.
He was elected MP for Derbyshire in 1741 and 1747, but left the House of Commons for the Lords in 1751 by a
writ of accelerationas Baron Cavendish and was sworn of the Privy Council. He was Lord Lieutenant of Irelandfrom 2 April 1755 until 3 January 1757, when his successor, the 4th Duke of Bedford, entered the office. After inheriting his father's peerage titles (chiefly the Dukedom of Devonshire), Devonshire was given the Garter and appointed First Lord of the Treasury(most historians consider him Prime Minister during this service) in November 1756, and he served as First Lord until May 1757 in an administration effectively run by William Pitt the Elder. In 1762, he was sworn of the Privy Council of Ireland.
He married Lady Charlotte Elizabeth Boyle, Baroness Clifford (1731–1754), the daughter and heiress of the 3rd Earl of Burlington of the 1st creation, a famous
architectand artcollector. Through her, the Devonshires inherited Chiswick Houseand Burlington Housein London; Bolton Abbeyand Londesborough Hallin Yorkshire; and Lismore Castlein County Waterford, Ireland. The Duke employed Capability Brownto landscape the garden and park at Chatsworth House, his main residence. He hired James Paineto design the new stable block.
The Duke had four children:
William Cavendish, 5th Duke of Devonshire(1748–1811)
*Lady Dorothy Cavendish (1750–1794). Married
William Cavendish-Bentinck, 3rd Duke of Portland, who also became Prime Minister.
*Lord Richard Cavendish (1752–1781)
*George Augustus Henry Cavendish, created 1st
Earl of Burlingtonof the 2nd creation (1754–1834). Lord Burlington's grandson, the 2nd Earl of Burlington, would later inherit the Devonshire dukedom as 7th Duke of Devonshire.
Titles from birth to death
*Lord Cavendish of Hardwick (1720-1729)
*Marquess of Hartington (1729-1741)
*Marquess of Hartington, MP (1741-1751)
*The Rt. Hon. Marquess of Hartington (1751-1755)
*"His Grace" The Duke of Devonshire, PC (1755-1756)
*"His Grace" The Duke of Devonshire, KG, PC (1756-1764)
* [http://www.number10.gov.uk/history-and-tour/prime-ministers-in-history/duke-of-devonshire More about William Cavendish, Duke of Devonshire] on the Downing Street website.
NAME= Cavendish, William, 4th Duke of Devonshire
ALTERNATIVE NAMES=Marquess of Hartington; Baron Cavendish
SHORT DESCRIPTION=Prime Minister of Great Britain (1756 - 1757)
DATE OF BIRTH=8 May 1720
PLACE OF BIRTH=
DATE OF DEATH=2 October 1764
PLACE OF DEATH=
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