Lady Mary Erskine (born 1597) (1597–1664) Parents John Erskine, 18th Earl of Mar Marie Stewart, Countess of Mar Children George Keith, 7th Earl Marischal Jean Keith Sir James Keith of Benholme William Keith, 7th Earl Marischal John Keith, 1st Earl of Kintore Lady Mary Keith Siblings James Erskine, 6th Earl of Buchan John Erskine Lady Margaret Erskine Sir John Erskine of Otterstoun Sir Charles Erskine of Alva Lady Anne Erskine Lady Catherine Erskine Henry Erskine, Master of Cardross Partners Patrick Maule, 1st Earl of Panmure