By 1820 marriage and advancing years had reformed Shelley’s rakish tendencies and curbed his gambling, though his passion for horse racing remained fervent. His abrasive sense of humour was also undimmed, as he demonstrated at the duke of Devonshire’s in 1823, when he told his unamused host, resplendent in an elaborate gold waistcoat, that he looked ‘like a mackerel just caught’.
He continued to vote with the Whig opposition to Lord Liverpool’s ministry on certain issues, particularly for economy and retrenchment, but in other respects he was becoming increasingly unreliable. He divided against Scottish parliamentary reform, 2 June 1823. He also continued to vote against Catholic relief, 28 Feb. 1821, 30 Apr. 1822, 1 Mar., 21 Apr. (paired), 10 May 1825. He spoke in favour of transferring Sussex elections to Lewes, 23 June 1820.
At the duke of York’s funeral, 20 Jan. 1827, Shelley was said to be ‘lame and hobbling’, and two days later he suffered a severe attack of gout.
The ministry regarded him as one of their ‘friends’, and he voted with them in the crucial civil list division, 15 Nov. 1830. He spoke in support of the Sussex juries bill, which proposed to divide the county for assize purposes, 9 Nov. He approved of the labourers’ wages bill, 19 Nov., arguing that low wages were the cause of the ‘Swing’ riots. He admitted that the ‘mass of crime which has prevailed in the country for years past’ was ‘in some measure to be attributed to the existing game laws’, 15 Feb. 1831, and he offered no further resistance to their reform, though he warned against exaggerated expectations of what this could achieve. Next day he spoke in favour of landowners giving allotments to the poor, observing that ‘feelings of amity and goodwill towards the higher classes’ prevailed where this had already been done. It was around this time that Shelley provoked amazement with an audacious request for the barony of Sudeley to be revived for his benefit, to which the prime minister Lord Grey bluntly responded that he had no claim.
By October 1831 Shelley’s wife was noting that his ‘personal comfort’ had been greatly increased by his absence from Parliament and that he had ‘entirely lost his wish to stand any more contests’. In a subsequent eulogy on his political career, she observed with satisfaction that the rise in poaching following reform of the game laws had been predicted by him.
