Robert Douglas, 4th Earl of Buchan Peerage person ID=25029 (1543–1580) Parents Sir Robert Douglas of Lochleven Margaret Erskine Children unknown daughter Douglas Lady Marion Douglas Lady Elizabeth Douglas James Douglas, 5th Earl of Buchan Siblings William Douglas, 6th Earl of Morton Sir George Douglas Janet Douglas Catherine Douglas Euphemia Douglas James Stewart, 1st Earl of Moray Partners Christina Stewart, 4th Countess of Buchan