Archibald Kennedy, 1st Marquess of Ailsa, KT

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Archibald Kennedy

Birthdate: (76)
Death: 1846 (76)
Immediate Family:

Son of Captain Archibald Kennedy, 11th Earl of Cassilis and Anne Kennedy
Husband of Margaret Kennedy
Father of Archibald Kennedy, styled Earl of Cassillis; John Kennedy-Erskine; Anne Baird; Margaret Eyre and Alice Jane Peel
Brother of Robert Kennedy

Managed by: Michael Lawrence Rhodes
Last Updated:

About Archibald Kennedy, 1st Marquess of Ailsa, KT,_1st_Marquess_of_Ailsa

Archibald Kennedy, 1st Marquess of Ailsa KT, FRS (February 1770 – 8 September 1846), styled Lord Kennedy between 1792 and 1794 and known as The Earl of Cassilis between 1794 and 1831, was a Scottish peer.


Kennedy was the eldest son of Archibald Kennedy, 11th Earl of Cassilis, by Anne, daughter of John Watts. He became known by the courtesy title Lord Kennedy when his father succeeded in the earldom of Cassilis in 1792.


Kennedy succeeded in the earldom on the death of his father 30 December 1794. He sat in the House of Lords as a Scottish Representative Peer between 1796 and 1806. The latter year he was created Baron Ailsa, of Ailsa in the County of Ayr, in the Peerage of the United Kingdom, which entitled him to an automatic seat in the House of Lords. He was admitted a Fellow of the Royal Society on 18 February 1819. In 1831 he was created Marquess of Ailsa, of the Isle of Ailsa in the County of Ayr. He voted for the Reform Bill in 1832.


Lord Ailsa married Margaret Erskine, the second daughter of John Erskine of Dun, Forfarshire, on 1 June 1793. They had five children:

Lady Alicia Jane Kennedy (d. 1887), married Jonathan Peel and had issue.

Archibald Kennedy, Earl of Cassilis (1794–1832), married Eleanor Allardyce and had issue.

Lady Anne Kennedy (1798–1877), married Sir David Baird of Newbyth, 2nd Baronet and had issue.

Lady Margaret Kennedy (1800–1889), married Thomas Radclyffe-Livingstone-Eyre.

The Hon. John Kennedy-Erskine (1802–1831), married Lady Augusta FitzClarence, an illegitimate daughter of King William IV and Dorothy Jordan and had issue (their granddaughter was the writer and poet Violet Jacob). John Kennedy-Erskine assumed the additional name of Erskine on being named heir to the House of Dun.

Lord Ailsa died in 1846 and was succeeded by his grandson, Archibald Kennedy.

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Archibald Kennedy, 1st Marquess of Ailsa, KT's Timeline

Age 24
June 26, 1797
Age 27
June 16, 1800
Age 30
June 4, 1802
Age 32
July 2, 1805
Age 35
Age 76