John Cochrane, 4th Earl of Dundonald (1687-1720) (1687–1720) Parents Lady Susanna Hamilton John Cochrane, 2nd Earl of Dundonald Children William Cochrane, 5th Earl of Dundonald Susan Lyon, Countess of Strathmore and Kinghorne Anne Cochrane Catherine Cochrane Siblings John Cochrane, 3rd Earl of Dundonald John Hay, 4th Marquess of Tweeddale Charles Hay Lady Anne Cochrane George Hay, 6th Marquess of Tweedale Partners Lady Anne Murray Lady Mary Osborne