On 29 May 1744 Horace Walpole wrote: "Dashwood (Lady Carteret's quondam lover) has stolen a great fortune, a Miss Bateman; but this match was not effected, and on 19 December 1745 Dashwood married at St. George's, Hanover Square, Sarah, daughter of George Gould of Iver, Buckinghamshire, and widow of Sir Richard Ellis, third baronet of Wyham, Lincolnshire, who died on 14 January 1742.
Horace Walpole described her as "a poor forlorn Presbyterian prude"; His marriage had no effect upon Dashwood's profligacy; according to Wraxall he "far exceeded in licentiousness of conduct any model exhibited since Charles II".

Dashwood left no legitimate issue, and the Barony of Le Despencer again fell into abeyance.
One pretender to his title was his illegitimate daughter Rachel Fanny Antonina Dashwood, another was his sister Rachel, widow of Sir Robert Austen, 4th Baronet of Bexley, Kent, illegally assumed the title Baroness Le Despencer, but on her death the abeyance was once more terminated in favour of her cousin, Thomas Stapleton, 12th Baron.
His granddaughter, Mary Frances Elizabeth, succeeded in 1848 as 13th Baroness, and her son, Evelyn Edward Thomas Boscawen, 17th Viscount Falmouth, succeeded as 14th Baron Le Despencer on 25 November 1891 — see Baron le Despencer.
Dashwood's baronetcy passed, on his death, to his half brother, Sir John Dashwood-King (1716-1793)
On 29 May 1744 Horace Walpole wrote: "Dashwood (Lady Carteret's quondam lover) has stolen a great fortune, a Miss Bateman; but this match was not effected, and on 19 December 1745 Dashwood married at St. George's, Hanover Square, Sarah, daughter of George Gould of Iver, Buckinghamshire, and widow of Sir Richard Ellis, third baronet of Wyham, Lincolnshire, who died on 14 January 1742. Horace Walpole described her as "a poor forlorn Presbyterian prude"; His marriage had no effect upon Dashwood's profligacy; according to Wraxall he "far exceeded in licentiousness of conduct any model exhibited since Charles II".
Dashwood left no legitimate issue, and the Barony of Le Despencer again fell into abeyance. One pretender to his title was his illegitimate daughter Rachel Fanny Antonina Dashwood, another was his sister Rachel, widow of Sir Robert Austen, 4th Baronet of Bexley, Kent, illegally assumed the title Baroness Le Despencer, but on her death the abeyance was once more terminated in favour of her cousin, Thomas Stapleton, 12th Baron. His granddaughter, Mary Frances Elizabeth, succeeded in 1848 as 13th Baroness, and her son, Evelyn Edward Thomas Boscawen, 17th Viscount Falmouth, succeeded as 14th Baron Le Despencer on 25 November 1891 — see Baron le Despencer. Dashwood's baronetcy passed, on his death, to his half brother, Sir John Dashwood-King (1716-1793)
Francis Dashwood, 11th Baron le Despencer