Baron Keith of Stonehaven Marrischal is in Baron Ireland.
In 1797 George Keith Elphinstone 1st Viscount Keith [aged 50] was created 1st Baron Keith of Stonehaven Marrischal with remainder in default of issue male of his own to his daughter and only child from his first marriage, Margaret Mercer Elphinstone, and the heirs male of her body.
On 10th March 1823 George Keith Elphinstone 1st Viscount Keith [aged 77] died. Viscount Keith and Baron Keith of Stonehaven Marischal Kincardine extinct
Margaret Mercer Elphinstone Countess Flahaut and 2nd Baroness Keith [aged 34] succeeded 2nd Baroness Keith of Stonehaven Marrischal, 2nd Baroness Keith of Banheath in Dumbarton.
On 11th November 1867 Margaret Mercer Elphinstone Countess Flahaut and 2nd Baroness Keith [aged 79] died at the Palais de la Légion d'Honneur. Baron Keith of Stonehaven Marrischal and Baron Keith of Banheath in Dumbarton extinct.