James Stuart-Wortley, 1st Baron Wharncliffe
|The Right Honourable
The Lord Wharncliffe
|Lord Privy Seal|
15 December 1834 – 8 April 1835
|Prime Minister||Sir Robert Peel, Bt|
|Preceded by||The Earl of Mulgrave|
|Succeeded by||Viscount Dungannon|
|Lord President of the Council|
3 September 1841 – 19 December 1845
|Prime Minister||Sir Robert Peel, Bt|
|Preceded by||The Marquess of Lansdowne|
|Succeeded by||The Duke of Buccleuch|
|Born||6 October 1776|
|Died||19 December 1845|
|Spouse(s)||Lady Elizabeth Crichton (1779–1856)|
Colonel James Archibald Stuart-Wortley-Mackenzie, 1st Baron Wharncliffe PC (6 October 1776 – 19 December 1845), was a British soldier and politician. A grandson of Prime Minister John Stuart, 3rd Earl of Bute, he held office under Sir Robert Peel as Lord Privy Seal between 1834 and 1835 and as Lord President of the Council between 1841 and 1845.
Background and education 
Stuart-Wortley was the son of Colonel James Stuart-Wortley-Mackenzie, son of John Stuart, 3rd Earl of Bute and his wife Mary Wortley-Montagu, Baroness Mountstuart in her own right, daughter of Edward Wortley Montagu and Lady Mary Pierrepont. His father had assumed the additional surname of Wortley as heir to his mother, taking later also that of Mackenzie (which his son in later life discarded) as heir to his great-uncle James Stuart-Mackenzie of Rosehaugh. Stuart-Wortley's mother was Margaret, daughter of Lieutenant-General Sir David Cunynghame, 3rd Baronet. He was educated at Charterhouse School.
Military career 
Stuart-Wortley was commissioned into the 48th Foot in 1790, transferred to the 7th Foot in 1791, and purchased a Captaincy in the 72nd Foot in 1793. He was promoted Lieutenant-Colonel in 1797 and became Colonel of the 12th Foot six months later. In 1797 he transferred to the Grenadier Guards, but resigned his commission in 1801.
Political career 
Stuart-Wortley sat as Tory Member of Parliament for the rotten borough of Bossiney in Cornwall between 1797 and 1818, when he was returned for Yorkshire. His attitude on various questions became gradually more Liberal, and his support of Catholic emancipation lost him his seat in 1826. He was then raised to the peerage as Baron Wharncliffe, of Wortley in the County of York, a recognition both of his previous parliamentary activity and of his high position among the country gentlemen.
At first opposing the 1832 Reform Bill, he gradually came to see the undesirability of a popular conflict, and he separated himself from the Tories and took an important part in modifying the attitude of the peers and helping to pass the bill, though his attempts at amendment only resulted in his pleasing neither party. He became Lord Privy Seal in Sir Robert Peel's short 1834 to 1835 ministry, and again joined him in 1841 as Lord President of the Council, a post he held until 1845. In 1834 he was sworn of the Privy Council.
In 1837 Lord Wharncliffe brought out an edition of the writings of his ancestress, Lady Mary Wortley Montagu.
- John Stuart-Wortley-Mackenzie, 2nd Baron Wharncliffe (1801–1855)
- Hon. Charles Stuart-Wortley-Mackenzie (1802–1844)
- Hon. James Archibald Stuart-Wortley (1805–1881), Solicitor-General
- Hon. Caroline Jane Stuart-Wortley-Mackenzie (d. 12 June 1876), married on 30 August 1830 Hon. John Chetwynd-Talbot (1806–1852)
Lord Wharncliffe died in December 1845, aged 69, and was succeeded in the barony by his eldest son, John, whose son Edward, 3rd Baron was created Earl of Wharncliffe in 1876. Lady Wharncliffe died in April 1856.
- House of Commons: Bodmin to Bradford East. Leighrayment.com. Retrieved on 2012-07-09.
- House of Commons: Yardley to Youghal. Leighrayment.com. Retrieved on 2012-07-09.
- The London Gazette: . 17 June 1826.
- Privy Counsellors 1769–1834. Leighrayment.com. Retrieved on 2012-07-09.
- "Theroff's Online Gotha, Bute". Archived from the original on 2006-09-10. Retrieved 2006-12-01.
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press.
- Hansard 1803–2005: contributions in Parliament by Lord Wharncliffe