John Stuart, Jr., 4th Earl of Bute, 1st Marquess Mountstuart

"Through his marriage to Charlotte Jane Windsor, the estates of the Herberts, Earls of Pembroke, afterwards descended to the house of Bute."

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John Stuart, 1st Marquess of Bute PC, FRS (30 June 1744 – 16 November 1814), styled Lord Mount Stuart until 1792 and known as The Earl of Bute between 1792 and 1794, was a British nobleman.

He was the son of John Stuart, 3rd Earl of Bute and the former Mary Wortley Montagu, a granddaughter of the 1st Duke of Kingston-upon-Hull and great-granddaughter of the 1st Earl of Sandwich. He was educated at Winchester and Oxford University, and around 1757 he began to be tutored by the later famous Scottish philosopher Adam Ferguson

Lord Bute married the Honourable Charlotte Hickman-Windsor, daughter of Herbert Hickman-Windsor, 2nd Viscount Windsor, on 12 November 1766. They had several children:

• John Stuart, Lord Mount Stuart (25 September 1767 – 22 January 1794), whose son succeeded as 2nd Marquess
• Lord Evelyn Stuart (1773–1842), a colonel in the army
• Lady Charlotte Stuart (c. 1775 – 5 September 1847), married Sir William Homan, 1st Baronet
• Lord Henry Stuart (7 June 1777 – 19 August 1809), father of Henry Villiers-Stuart, 1st Baron Stuart de Decies
• Captain Lord William Stuart (18 November 1778 – 28 July 1814)
• Rear-Admiral Lord George Stuart (1 March 1780 – 19 February 1841 )

His first wife died on 28 January 1800. He married Frances Coutts, daughter of Thomas Coutts, on 17 September 1800. They had two children:

• Lady Frances Stuart (d. 29 March 1859)
• Lord Dudley Coutts Stuart (11 January 1803 – 17 November 1854)

His second wife outlived him, and died on 12 November 1832.

The Peerage 112426

'John Stuart, 1st Marquess of the County of Bute

• Born on 30 June 1744 at Mount Stuart, Rothesay, Isle of Bute, Scotland.
• Son of John Stuart, 3rd Earl of Bute and Mary Wortley-Montagu, Baroness Mount Stuart of Wortley.
• Married, firstly, - Hon. Charlotte Jane Windsor, daughter of Herbert Hickman-Windsor, 2nd Viscount Windsor of Blackcastle and Alice Clavering, on 12 November 1766 at St. John's Chapel, St. George Hanover Square, London, England.
• Married, secondly -, Frances Coutts, daughter of Thomas Coutts and Susan Starkie, on 17 September 1800 at Stratton Street, St. George Hanover Square, London, England.
• Died on 16 November 1814 at age 70 at Geneva, Switzerland.
• Educated at

• Winchester College, Winchester, Hampshire, England.
  
• Oxford University, Oxford, Oxfordshire, England.
  

• Held the office of

• Member of Parliament (M.P.) (Tory) for Bossiney between 1766 and 1776.
  
• Lord-Lieutenant of Glamorganshire between 1772 and 1793.
  
• Auditor of the Imprest between 1781 and 1782
  
• Ambassador to Spain between March 1783 and December 1783
  
• Lord-Lieutenant of Bute between 1794 and 1814.
  
• Lord-Lieutenant of Glamorganshire between 1794 and 1814.
  
• Ambassador to Spain between 1795 and 1796
  
• Counsellor of State [Scotland] to the Prince of Wales in 1806.
  

• Created 1st Baron Cardiff of Cardiff Castle [Great Britain] on 20 May 1776, in recognition of his vast South Wales properties.
• Invested as a Privy Counsellor (P.C.) in 1779.1
• Envoy to Turin between 1779 and 1783.
• Styled as Viscount Mount Stuart in 1783.
• Succeeded to the title

• 4th Lord Mountstuart, Cumra and Inchmarnock [S., 1703] on 10 March 1792.
  
• 6th Baronet Stuart, of Bute [N.S., 1627] on 10 March 1792.
  
• 4th Earl of Bute [S., 1703] on 10 March 1792.
  
• 4th Viscount Kingarth [S., 1703] on 10 March 1792.
  
• 2nd Baron Mount Stuart of Wortley, co. York [G.B., 1761] on 6 November 1794.
  

• Created

• 1st Earl of Windsor [Great Britain] on 27 February 1796.
  
• 1st Marquess of the County of Bute [Great Britain] on 27 February 1796.
  
• 1st Viscount Mountjoy, of the Isle of Wight [Great Britain] on 27 February 1796, commemorating his first wife's parentage.
  

• Invested as a Fellow, Royal Society (F.R.S.) on 12 December 1799.
  

Children of John Stuart, 1st Marquess of the County of Bute and Hon. Charlotte Jane Windsor

• John Stuart, Viscount Mount Stuart b. 25 Sep 1767, d. 22 Jan 1794
• Lady Charlotte Stuart b. c 1775, d. 5 Sep 1847
• Lt. Lord Charles Stuart b. 18 Jul 1775, d. 11 Feb 1796
• Lord Henry Stuart b. 7 Jun 1777, d. 19 Aug 1809
• Captain Lord William Stuart b. 18 Nov 1778, d. 28 Jul 1814
• Rear-Admiral Lord George Stuart b. 1 Mar 1780, d. 19 Feb 1841

Children of John Stuart, 1st Marquess of the County of Bute and Frances Coutts

• Lady Frances Stuart d. 29 Mar 1859
• Lord Dudley Coutts Stuart b. 11 Jan 1803, d. 17 Nov 1854