Lady Catherine Margaret Keith (1690-1762) (1690–1762) Parents William Keith, 2nd Earl of Kintore Catherine Murray Children Alexander Hay of Delgaty Alexander Falconer, 5th Lord Falconer of Halkertoun William Falconer, 6th Lord Falconer of Halkertoun Siblings William Keith, 4th Earl of Kintore Lady Jean Keith John Keith, 3rd Earl of Kintore Partners David Falconer, 4th Lord Falconer of Halkertoun