George King, 3rd Earl of Kingston

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George King, 3rd Earl of Kingston (9 April 1771 – 18 October 1839), styled Viscount Kingsborough from 1797 to 1799, was an Irish nobleman.

He was the son of Robert King, 2nd Earl of Kingston of Mitchelstown Castle, who he succeeded in 1799.

Early 19th century painting of the new Mitchelston Castle, now demolished

He was returned as a Member of the Irish House of Commons for County Roscommon in 1798, vacating the seat in the following year when he succeeded his father to the peerage and briefly taking his seat in the Irish House of Lords before it was abolished in 1800 after the union with Great Britain. He was created Baron Kingston in the Peerage of the United Kingdom in 1821, thus giving him and his descendants an automatic seat in the UK House of Lords.[1]

In 1823, he demolished the existing Palladian house on the Mitchelstown estate and replaced it with a new castle designed by James and George Richard Pain.[2] It had 60 principal and 20 minor bedrooms, a 100-foot-long (30 m) gallery, three libraries, morning room, dining room (which could seat 100 guests at one sitting) and various other facilities.[3]

On 5 May 1794, he married Lady Helena, the daughter of Stephen Moore, 1st Earl Mount Cashell. They had six children:[1][4]

George King's sister Margaret King married his wife's brother Stephen Moore, 2nd Earl Mount Cashell.


  1. ^ a b Debrett, John (1840). Debrett's Peerage of England, Scotland and Ireland. p. 423.
  2. ^ Preston Neale, John; Thomas Moule (1825). Views of the seats of noblemen and gentlemen, in England, Wales, Scotland, and Ireland. Sherwood, Jones and Co. pp. (no page numbers). Retrieved 17 October 2009.
  3. ^ Mitchelstown Castle profile Archived 27 July 2011 at the Wayback Machine,; accessed 25 April 2016.
  4. ^ Lodge, Edmund (1861). The Peerage and Baronetage of the British Empire. p. 338.
Parliament of Ireland
Preceded by
Sir Edward Crofton
Arthur French
Member of Parliament for Roscommon County
With: Arthur French
Succeeded by
Arthur French
Thomas Mahon
Peerage of Ireland
Preceded by
Robert King
Earl of Kingston
Succeeded by
Robert King
Peerage of the United Kingdom
New creation Baron Kingston
Succeeded by
Robert King