Their daughter Elizabeth Frances Townshend (2 August 1789 –10 April 1862 Nice) married 20 October 1813 Captain Augustus Clifford R.N., later Sir Augustus Clifford, 1st Bt (1788-1877), illegitimate son of the 5th Duke of Devonshire and his mistress, Lady Elizabeth Foster, née Hervey, later the Duke's second wife (1811).
Elizabeth Frances Townshend, born on August 2, 1789 and died on April 10, 1862 in Nice, married Captain Augustus Clifford R.N., who became Sir Augustus Clifford, 1st Bt (born 1788, died 1877), the illegitimate son of the 5th Duke of Devonshire and his mistress, Lady Elizabeth Foster, née Hervey, later the Duke's second wife.