The Earl of Rosslyn
Master of the Buckhounds
In office
10 September 1841 – 29 June 1846
Prime MinisterSir Robert Peel
Preceded byThe Lord Kinnaird
Succeeded byThe Earl Granville
In office
28 February 1852 – 17 December 1852
Prime MinisterThe Earl of Derby
Preceded byThe Earl of Bessborough
Succeeded byThe Earl of Bessborough
Member of the House of Lords
Lord Temporal
In office
18 January 1837 – 16 June 1866
Hereditary Peerage
Preceded byThe 2nd Earl of Rosslyn
Succeeded byThe 4th Earl of Rosslyn
Personal details
Born15 February 1802
Died16 June 1866 (1866-06-17) (aged 64)
Political partyTory
Frances Wemyss
(m. 1826; died 1858)
Parent(s)James St Clair-Erskine, 2nd Earl of Rosslyn
Harriet Elizabeth Bouverie

General James Alexander St Clair-Erskine, 3rd Earl of Rosslyn PC, DL (15 February 1802 – 16 June 1866), styled Lord Loughborough from 1805 to 1837, was a Scottish soldier and Tory politician. A General in the British Army, he also held political office as Master of the Buckhounds between 1841 and 1846 and again in 1852 and as Under-Secretary of State for War in 1859.

Early life

Rosslyn was the son of James St Clair-Erskine, 2nd Earl of Rosslyn, by his wife Harriet Elizabeth Bouverie, daughter of the Hon. Edward Bouverie (the second son of Jacob Bouverie, 1st Viscount Folkestone).[1]


Rosslyn entered the British Army in 1819. He purchased a captaincy in the 9th Light Dragoons in 1823[2] and a lieutenant-colonelcy in 1828.[3] He was promoted to Major-General in 1854,[4] to Lieutenant-General in 1859[5] and to full General on 20 April 1866.[6]

In 1864 he was appointed Regimental Colonel of the 7th Queen's Own Hussars after the death of General Sir William Tuyll.[7] Lord Rosslyn also commanded the Auxiliary Cavalry Regiment, The Fife Mounted Rifle Volunteers from 1860 until his death in 1866.

Political career

Rosslyn was returned to Parliament for Dysart Burghs, in Fife, in 1830,[8] a seat he held until 1831, and then represented Grimsby from 1831 to 1832.[9] He succeeded his father in the earldom in 1837. In 1841 he was sworn of the Privy Council[10] and appointed Master of the Buckhounds under Sir Robert Peel,[11] which he remained until the government fell in 1846.[12] He held the same office from February[13] to December 1852[14] under Lord Derby, and was briefly Under-Secretary of State for War under Derby from March to June 1859.

Lord Rosslyn was also a Deputy Lieutenant for Fife.[15]

Personal life

In 1826, James married Frances Wemyss (1794–1858), daughter of Lt.-Gen. William Wemyss, of Wemyss Castle, Fife. Together, they were the parents of two sons and a daughter, including:[1]

Lady Rosslyn died on 30 September 1858 and Lord Rosslyn died, several years later, in June 1866, aged 64. He was succeeded in the earldom by his only surviving son, Robert.[1]


  1. ^ a b c d e f "Rosslyn, Earl of (UK, 1801)". Heraldic Media Limited. Retrieved 21 July 2020.
  2. ^ "No. 17911". The London Gazette. 5 April 1823. p. 541.
  3. ^ "No. 18428". The London Gazette. 1 January 1828. p. 3.
  4. ^ "No. 21564". The London Gazette. 22 June 1854. p. 1932.
  5. ^ "No. 22344". The London Gazette. 10 January 1860. p. 79.
  6. ^ "No. 23113". The London Gazette. 8 May 1866. p. 2814.
  7. ^ "No. 22929". The London Gazette. 13 January 1865. p. 167.
  8. ^ Leigh Rayment's Historical List of MPs – Constituencies beginning with "D" (part 4)
  9. ^ Leigh Rayment's Historical List of MPs – Constituencies beginning with "G" (part 2)
  10. ^ "No. 20019". The London Gazette. 17 September 1841. p. 2315.
  11. ^ "No. 20017". The London Gazette. 10 September 1841. p. 2273.
  12. ^ "No. 20626". The London Gazette. 28 July 1846. p. 2754.
  13. ^ "No. 21298". The London Gazette. 5 March 1852. p. 698.
  14. ^ "No. 21398". The London Gazette. 4 January 1852. p. 1.
  15. ^ "No. 18469". The London Gazette. 13 May 1828. p. 918.
Parliament of the United Kingdom Preceded bySir Ronald Crauford Ferguson Member of Parliament for Dysart Burghs 1830–1831 Succeeded byRobert Ferguson Preceded byGeorge HarrisJohn Shelley Member of Parliament for Grimsby 1831–1832 With: Henry Fitzroy Succeeded byWilliam Maxfield Political offices Preceded byThe Lord Kinnaird Master of the Buckhounds 1841–1846 Succeeded byThe Earl Granville Preceded byThe Earl of Bessborough Master of the Buckhounds February–December 1852 Succeeded byThe Earl of Bessborough Preceded byThe Viscount Hardinge Under-Secretary of State for War March–June 1859 Succeeded byThe Earl de Grey and Ripon Peerage of the United Kingdom Preceded byJames St Clair-Erskine Earl of Rosslyn 1837–1866 Succeeded byRobert St Clair-Erskine