David Hay, 12th Marquess of Tweeddale (1921-1979) (1921–1979) Parents Violet Barclay Lord Edward Hay Children Lord Andrew Hay David Hay, 14th Marquess of Tweeddale Edward Hay, 13th Marquess of Tweeddale Alistair Hay Lord Hamish Hay Siblings Lady Marioth Hay Lady Caroline Susan Elizabeth Hay Partners Nella Dutton Sonia Peake