Powell was descended from a branch of the Powells of Pengethley, Herefordshire, which settled in Wiltshire in the mid-seventeenth century. His grandfather Alexander Powell (?1716-84) was active in the municipal affairs of Salisbury and an unsuccessful aspirant to the parliamentary representation in 1765. He was knighted in 1762 and served for many years as deputy recorder of the borough.
Powell’s own politics were Tory and he married a niece of the 1st Lord Ellenborough, whose son and successor was later a member of the duke of Wellington’s cabinet. He chaired the Wiltshire county meeting which approved an address of congratulation and condolence to the new king, 30 Jan. 1821, but was not otherwise prominent in local affairs.
as long as I continue in Parliament, it shall be my endeavour to act in an upright and independent manner, and as much as possible to justify the favourable opinion your lordship has expressed of me. I assure you, I have never given any vote which at the moment I do not sincerely believe is for the good of the country.R.K. Huch, The Radical Lord Radnor, 109; Longford Castle mss 30/7, Powell to Radnor, 6, 10 Feb., replies, 7, 8 Feb. 1828.
Powell was therefore left free to vote against repeal of the Test Acts, 26 Feb., and Catholic relief, 12 May 1828. He was listed by Planta, the Wellington ministry’s patronage secretary, as ‘opposed to the principle of the bill’ in February 1829, when he signed the Wiltshire anti-Catholic declaration, and was one of the diehard opponents of emancipation in the Commons the following month.
At the dissolution that summer, he amicably withdrew from Downton, where Radnor replaced him with a member of the opposition.
