He served in the House of Commons of England as the Member of Parliament for Richmond between 1698 and 1701.
On 13 September 1721 he was created Baron Darcy of Navan in the Peerage of Ireland.
[1] The title was created with special remainder to male heirs of his daughter, Mary.
His daughter Mary married William Jessop.
He was succeeded in his title by the terms of the remainder by his grandson, James Jessop, who subsequently changed his surname to Darcy.