Background
Duncombe was the son of Anthony Duncombe and Jane Cornwallis, daughter of the Honourable Frederick Cornwallis, younger son of Frederick Cornwallis, 1st Baron Cornwallis.
Duncombe was the son of Anthony Duncombe and Jane Cornwallis, daughter of the Honourable Frederick Cornwallis, younger son of Frederick Cornwallis, 1st Baron Cornwallis.
The same year he was returned to Parliament for Salisbury, a seat he held until 1734, and then represented Downton between 1734 and 1747. The latter year he was raised to the peerage as Lord Feversham, Baron of Downton, in the County of Wiltshire. Lord Feversham was thrice married.
There were no children from this marriage.
They had one child, the Honourable Frances Duncombe (1757–1827). Lord Feversham married thirdly Anne Hales, daughter of Sir Thomas Hales, 3rd Baronet, in 1758.
They had one daughter, the Honourable Anne Duncombe (d 1829), who married her step-brother Jacob Pleydell-Bouverie, 2nd Earl of Radnor. Lord Feversham died in June 1763.
As he had no sons the barony died with him.
She died in June 1795.