John Hay, 4th Marquess of Tweeddale Scottish nobleman (1695–1762) Parents Lady Susanna Hamilton Charles Hay, 3rd Marquess of Tweeddale Children Lady Catherine Hay John Hay Lady Grace Hay George Hay, 5th Marquess of Tweeddale Lady Susanna Hay Siblings Charles Hay John Cochrane, 4th Earl of Dundonald John Cochrane, 3rd Earl of Dundonald Lady Anne Cochrane George Hay, 6th Marquess of Tweedale Partners Frances Hay, Marchioness of Tweedsdale
