Robert St Clair-Erskine, 4th Earl of Rosslyn

The Right Honourable The Earl of Rosslyn
"The Kirk of Scotland". The Earl of Rosslyn as caricatured by Théobald Chartran in Vanity Fair, November 1881.
Captain of the Gentlemen-at-Arms
In office 24 November 1886 – 11 August 1890
Monarch	Victoria
Prime Minister	The Marquess of Salisbury
Preceded by	The Viscount Barrington
Succeeded by	The Earl of Yarborough
Member of the House of Lords Lord Temporal
In office 16 June 1866 – 6 September 1890 Hereditary Peerage
Preceded by	The 3rd Earl of Rosslyn
Succeeded by	The 5th Earl of Rosslyn
Personal details
Born	2 March 1833
Died	6 September 1890 (1890-09-07) (aged 57)
Nationality	British
Political party	Conservative
Spouse	Blanche Adeliza Maynard ​ ​ (m. 1866)​
Children	Millicent Leveson-Gower, Duchess of Sutherland James St Clair-Erskine, 5th Earl of Rosslyn Alexander St Clair-Erskine Sybil Fane, Countess of Westmorland Lady Angela Forbes
Parents	James St Clair-Erskine, 3rd Earl of Rosslyn (father) Frances Wemyss (mother)
Relatives	Daisy Greville, Countess of Warwick (stepdaughter)

Robert Francis St Clair-Erskine, 4th Earl of Rosslyn (2 March 1833 – 6 September 1890),^[1] styled Lord Loughborough from 1851 until 1866, was a British Conservative politician. He served as Captain of the Gentlemen-at-Arms under Lord Salisbury between 1886 and 1890.