Hughes derived his considerable wealth from the proceeds of the Parys Mountain copper mine in Anglesey, on which his father had founded the family’s fortune. He had also inherited landed property in Anglesey, Caernarvonshire, Denbighshire and Flintshire, and was a partner in the Chester and North Wales Bank.
It is not clear whether it was Hughes or his brother James who voted with opposition on the civil list, 5 May 1820, but he was in their minorities on the same subject, 8 May, and the additional Scottish baron of exchequer, 15 May. He voted against the aliens bill, 1 June, 7 July. Either he or James voted to reduce the standing army, 14 June. He divided against Wilberforce’s resolution calling for compromise in the Queen Caroline affair, 22 June, and the barrack agreement bill, 17 July. He was one of Hobhouse’s minority of 12 in favour of a prorogation, 18 Sept. 1820. He joined in the opposition onslaught on government over their treatment of the queen in the first weeks of the 1821 session. He voted to condemn the Allies’ repression of the liberal movement in Naples, 21 Feb., and for Catholic relief, 28 Feb. He was in small minorities for receiving the petition of Nathan Broadhurst complaining of his treatment in Lancaster gaol, 7 Mar., Creevey’s motion for a reduction in the number of office-holders in the House, 9 Mar., and delaying the army estimates, 12 Mar.; but his only subsequent known votes that session were for repeal of the additional malt duty, 3 Apr., inquiry into Peterloo, 16 May, and economy and retrenchment, 27 June. Although he was listed as one of the stewards of the London Tavern reform dinner, 4 Apr. 1821, he did not attend.
From November 1825 Hughes had been vilified as a hypocrite and sham reformer in the Tory Berkshire Chronicle, which mounted a campaign to expose the ‘Miller’ system at Wallingford. In March 1826 he announced his intention of standing at the next election and, joining forces with his Whig colleague Robarts, canvassed in response to threats of opposition which then came to nothing.
I have always felt convinced of the necessity for general parliamentary reform, but I never have been friendly to that species of reform which would have borne on the poor elector only while it left the borough proprietor in undisturbed possession of his property ... On this principle I refrained from voting for the disfranchising of Grampound, because I would not consent to disfranchise that borough, while so many equally corrupt were to be left untouched ... and which had for a series of years been held as property by individual patrons, which had been repeatedly been publicly brought to market.
He added that for this reason he had not felt able to vote for Russell’s resolutions of 26 May 1826 aimed at curbing the practice of electoral bribery, ‘which (however well intentioned) would have the effect of throwing a stronger fence around boroughs the property of individuals, and thus throw additional power and influence into the hands of the oligarchy’. When asked by a member of the corporation to confirm that he had voted for Russell’s reform motion only seven weeks earlier, he was said to have replied, ‘I suppose I did. I am not certain. I have voted so often for reform, that I really cannot recollect that motion in particular’.
He voted for Catholic relief, 6 Mar. 1827. On 30 Mar. he was in the opposition minority for withholding supplies until the uncertainty over the new ministry had been resolved. His attitude to Canning’s brief ministry is unknown. In the autumn of 1827 he was host at Kinmel to his friend the duke of Sussex (one of whose executors he was appointed in 1840) and his mistress Cecilia Buggin, ‘a very agreeable person though perhaps not a very refined one’.
At the general election of 1830 Hughes was returned again for Wallingford, with Knight, after a token contest.
As Lord Dinorben, he remained loyal to his Whig friends. His private life was studded with tragedy, for he lost six of the ten children produced by his first wife, and his only surviving son, William Lewis, born in 1821, was an imbecile. In a second marriage, made at the age of 72, he fathered two daughters, only one of whom survived him. He died in February 1852, having failed to recover consciousness after being seized with paralysis at dinner two days previously.
