Frances married in 1800 David Montagu, (son of Lord Chancellor Erskine), then Secretary of the English Legation at Washington, and in 1806, became Minister to this country. For many years he was Minister to Wurtemberg and afterwards to Bavaria. He succeeded his father as 2nd Lord Erkskine in 1823. His eldest son, Thomas, became 3rd Baron Erkskine, who d. s. p., and was succeeded by the second son John Cadwalader.
