Iona Mary Campbell, Duchess of Argyll (née Colquhoun; 22 June 1945 – 22 February 2024) was a Scottish noblewoman.
Iona Mary Colquhoun was born in 1945 in Edinburgh, the second child and only daughter of Ivar Colquhoun, 8th Baronet of Luss, and his wife, Kathleen (née Duncan, sister of Marjorie Grimston, Countess of Verulam).
On 4 July 1964, she married Ian Campbell, the then-Marquess of Lorne, at St Giles' Cathedral in Edinburgh.
[1] They had two children: Argyll and her daughter-in-law were patronesses of the Royal Caledonian Ball.
[3] Argyll died on 22 February 2024, at the age of 78.