Lady Marion Douglas Peerage person ID=464893 (1567–1630) Parents Christina Stewart, 4th Countess of Buchan Robert Douglas, 4th Earl of Buchan Children Robert Irvine, 1st of Fedderet Anne Irvine Margaret Irvine Sir Alexander Irvine, 10th of Drum Siblings James Douglas, 5th Earl of Buchan unknown daughter Douglas James Douglas, 5th Earl of Buchan Lady Elizabeth Douglas Partners Alexander Irvine, 9th of Drum