This article written and copyright 2012 by Will Johnson, wjhonson@aol.com, Professional Genealogist
1 Constancia Smythe
Constancia Smythe was born between 1719 and 1738, the daughter of John Smythe of Eshe Hall; Knt and 3rd Bnt -1737 and Constantia Blunt. Sometime between 1731 and 1751 she married Marmaduke Langdale who later in 1771 became the 5th Lord Langdale. By him, she had at least one child: Mary who married Charles Philip Stourton, 17th Lord Stourton. You can see the descents from this marriage by clicking this link. One descendant is John Eric Drummond, who in 2002, became the 9th Earl of Perth.
Further reading
2 John Smythe
3 Constantia Blunt