William Cavendish, 3rd Duke of Devonshire

William Cavendish, 3rd Duke of Devonshire, KG, PC (26 September 1698 – 5 December 1755) was a British nobleman and Whig politician who sat in the House of Commons from 1721 to 1729 when he inherited the Dukedom.

The Duke of Devonshire

George Knapton - William Cavendish, 3rd Duke of Devonshire.jpg
William Cavendish, 3rd Duke of Devonshire
Born26 September 1698
Died5 December 1755
Spouse(s)Catherine Hoskins
Children7 (including William Cavendish, 4th Duke of Devonshire, Lord John Cavendish, and Lord Frederick Cavendish)
Parent(s)William Cavendish, 2nd Duke of Devonshire
Hon. Rachel Russell


Cavendish was the son of William Cavendish, 2nd Duke of Devonshire, and his wife, the Hon. Rachel Russell, and was known as Marquis of Hartington.

Like his father, Lord Hartington was active in public life. He was returned unopposed as Member of Parliament for Lostwithiel at a by-election in 1721. At the 1722 general election he was returned unopposed as MP for Grampound. He was also unopposed when he was returned as MP for Huntingdonshire at the 1727 general election. He surrendered the seat in 1729 when his father's death sent him to the House of Lords.[1] He was made a Privy Counsellor in 1731. He served as Lord Privy Seal from 1731 to 1733, when he was invested as a Knight of the Garter. He later served for seven years as Lord Lieutenant of Ireland.[2]

He sold the Old Devonshire House at 48 Boswell Street, Theobald's Road, in Bloomsbury, and in 1734 engaged the architect William Kent to build a new Cavendish House in fashionable Piccadilly. In 1739, he was enlisted as a founding governor of a new children's charity, the Foundling Hospital in Bloomsbury, London, which aimed to alleviate the problem of infants being abandoned by destitute mothers and which later became a centre for art and music.

During the Jacobite rising of 1745 the Duke raised a militia unit in support of the King known as the Derbyshire Blues, which mustered at the George Inn, Derby, on 3 December 1745.

Marriage and issueEdit

On 27 March 1718, he married Catherine Hoskins, or Hoskyn (1700–1777), daughter of John Hoskins of Oxted (1640–1717) and Catherine Hale (1673–1703).

The Duke and Duchess had seven children:


  1. ^ "CAVENDISH, William, Mq. of Hartington (?1698-1755), of Chatsworth, Derbys". History of Parliament Online. Retrieved 17 August 2018.
  2. ^ "William Cavendish, 3rd Duke of Devonshire (1698 - 1755)". Chatsworth House. 27 March 2015. Retrieved 27 March 2015.

External linksEdit

Parliament of Great Britain
Preceded by Member of Parliament for Lostwithiel
With: John Newsham 1721–1722
Lord Stanhope 1722–1724
Succeeded by
Preceded by Member of Parliament for Grampound
With: Humphry Morice
Succeeded by
Preceded by Member of Parliament for Huntingdonshire
With: John Bigg
Succeeded by
Honorary titles
Preceded by Captain of the Gentlemen Pensioners
Succeeded by
Preceded by Lord Lieutenant of Derbyshire
Succeeded by
Political offices
Preceded by
In Commission
Lord Privy Seal
Succeeded by
Preceded by Lord Steward
Succeeded by
Preceded by Lord Lieutenant of Ireland
Succeeded by
Preceded by Lord Steward
Succeeded by
Peerage of England
Preceded by Duke of Devonshire
Succeeded by
Baron Cavendish of Hardwick
(descended by acceleration)