Margaret Erskine of Dun

Margaret Kennedy, Marchioness of Ailsa (1772 – 5 January 1848) was a Scottish noblewoman. She was born in 1772 to John Erskine and Mary Baird. On 1 June 1793, she married Archibald Kennedy, Lord Kennedy, who the following year succeeded as 12th Earl of Cassilis. Margaret inherited the House of Dun, a Georgian house, in 1824, and achieved the rank of Marchioness when her husband was created Marquess of Ailsa in 1831. She died on 5 January 1848.

• Archibald Kennedy, Earl of Cassilis (1794–1832), who predeceased his parents; by his wife Eleanor Allardyce, he was the father of Archibald Kennedy, 2nd Marquess of Ailsa.
• Lady Anne Kennedy (1797–1877), married Sir David Baird, 2nd Baronet
• Lady Margaret Kennedy (1800–1889), married Thomas Radclyffe-Livingstone-Eyre
• Lady Mary Kennedy (1800–1886), married Richard Oswald
• the Hon. John Kennedy-Erskine (1802–1831), who also predeceased his parents.^[1] He assumed the additional surname Erskine on being named heir to the House of Dun. He married Augusta FitzClarence, illegitimate daughter of King William IV.
• Lady Alicia Jane Kennedy (b. 2 Jul 1805 - d. 1887), married Jonathan Peel

Margaret Erskine of Dun is the title given to the painting by William Owen which can be found on the first floor of Culzean Castle.