William Hay, 18th Earl of Erroll
|The Right Honourable
The Earl of Erroll
KT GCH PC
|Lord Steward of the Household|
21 November 1839 – 30 August 1841
|Prime Minister||The Viscount Melbourne|
|Preceded by||The Duke of Argyll|
|Succeeded by||The Earl of Liverpool|
|Born||21 February 1801|
|Died||19 April 1846
|Spouse(s)||Lady Elizabeth FitzClarence (1801–1856)|
Background and education
Erroll was the son of William Hay, 17th Earl of Erroll, and his wife Alice (née Eliot). His paternal grandfather was James Hay, 15th Earl of Erroll, son of William Boyd, 4th Earl of Kilmarnock (who was attainted with his titles forfeited in 1746). He became heir apparent to the earldom in 1815 on the death of his elder brother, Lord Hay. He was educated at Eton.
Erroll succeeded his father in the earldom in 1819, aged 18. In 1822 he was elected a Scottish Representative Peer and took his seat in the House of Lords. He was Master of the Horse to Queen Adelaide from 1830 to 1834. In 1831 he was sworn of the Privy Council and created Baron Kilmarnock, of Kilmarnock in the County of Ayr, in the Peerage of the United Kingdom, a revival of the Kilmarnock title held by his great-grandfather. When the Whigs came to power under Lord Melbourne in 1835, Erroll was appointed Master of the Buckhounds. In 1839 he was promoted to Lord Steward of the Household on the decease of the Duke of Argyll, a post he held until the administration fell in 1841.
- Lady Ida Harriet Augusta Hay (18 October 1821 – 22 October 1867), one of the Queen's bridesmaids, married Charles Noel, 2nd Earl of Gainsborough.
- William Harry Hay, 19th Earl of Erroll (3 May 1823 – 3 December 1891), married Eliza Amelia Gore on 20 September 1848.
- Lady Agnes Georgiana Elizabeth Hay (12 May 1829 – 18 December 1869), who married James Duff, 5th Earl Fife in 16 March 1846. Their son, Alexander Duff, 1st Duke of Fife, married Princess Louise, daughter of King Edward VII.
- Lady Alice Mary Emily Hay (7 July 1835 – 7 June 1881) married Charles Edward Louis Casimir Stuart (1824–1882), nephew of fraud John Sobieski Stuart.
Lord Erroll died in London in April 1846, aged 45, and was succeeded by his eldest son, William. The Countess of Erroll died in January 1856, aged 54.
|Ancestors of William Hay, 18th Earl of Erroll|
- Kidd, Charles (1990). Debrett's Peerage and Baronetage. David Williamson (1990 ed.). St. Martin's Press. ISBN 0-312-04640-5.
- Eton College; Henry Edward Chetwynd Stapylton (1863). The Eton school lists, from 1791 to 1850: every third year after 1793, with notes. E. P. Williams. p. 87.
- The London Gazette: . 31 May 1831.
- The London Gazette: . 1 May 1835.
- Taylor, James (1887). The Great Historic Families of Scotland.
- Lodge, Edmund; Anne Innes; Eliza Innes; Maria Innes (1851). The Peerage of the British Empire as at Present Existing. Saunders and Otley. p. 222.
- Hansard 1803–2005: contributions in Parliament by the Earl of Erroll
|New office||Master of the Horse to Queen Adelaide
The Earl of Denbigh
The Earl of Chesterfield
|Master of the Buckhounds
The Lord Kinnaird
The Duke of Argyll
The Earl of Liverpool
The Duke of Gordon
|Lord Lieutenant of Aberdeenshire
The Earl of Aberdeen
|Peerage of Scotland|
William Harry Hay
|Earl of Erroll
|Peerage of the United Kingdom|
|New creation||Baron Kilmarnock