Lady Mary Erskine Peerage person ID=186536 (d. 1873) Parents Mary Douglas, Countess of Buchan James Erskine, 6th Earl of Buchan Children Alexander Forbes, 3rd Lord Forbes of Pitsligo Siblings Margaret Erskine James Erskine, 7th Earl of Buchan Henry Erskine Partners Alexander Forbes, 2nd Lord Forbes of Pitsligo