After a very careful upbringing by perfectionist parents, Denman was educated for the law, became a special pleader in 1803, married and was allowed £400 a year by his father, the eminent physician.
Appointed, by Lord Holland’s influence, deputy-recorder of Nottingham, a position he had first applied for in 1809, he was proposed for that borough in 1818, but withdrew on Holland’s advice, ‘rather than incur the risk of sacrificing a Whig Member for the town’. He was returned instead for Wareham on the Calcraft interest, at no expense to himself: the Duke of Devonshire and Lord Lansdowne jointly purchased the seat for him, for £4,000. Their partiality to Denman irked Henry Brougham, who complained that the claims on the party of himself, Romilly and Scarlett were ignored in favour of ‘this new favourite’.
In Parliament, Denman was a firm adherent of the opposition. He signed the requisition to Tierney to be their leader. From the start he was a spokesman on their behalf, though he never cut a great figure in the House, for all his imposing appearance and magnificent voice; nor, apparently, did he wish to do so: ‘Do not suffer anyone to suppose’, he informed his mother, ‘that I am sacrificing my profession to politics’.
Denman’s first major speech was against the additional grant of £10,000 to the Windsor establishment, which he regarded as a violation of the principle of economy, 25 Feb. 1819. He obtained leave of absence on 1 Mar. to go the midland circuit. Tierney confided in Lord Grey that Denman would not succeed as a speaker.
On 26 Nov. 1819, in the debate on the address, he defended the legality of the radical meeting at Manchester and on 30 Nov. added that its dispersal by the magistrates was uncalled for and not lawful; he sat down ‘amidst loud and general cheering’. All the repressive legislation that ensued found in him a keen critic, particularly the seditious meetings prevention bill, 7, 8, 13 Dec., the newspaper stamp duties bill, 20, 22 Dec., and the blasphemous libel bill, 23 Dec.; he regarded them as serious encroachments on English liberty. In April 1820, at Brougham’s instigation, he became solicitor-general to Queen Caroline and achieved public notoriety as her advocate, a step which hindered his advancement to legal distinction. The King made great difficulties about his being granted precedence at the bar in 1827 owing to a passage he quoted from an ancient historian during the Queen’s case which George IV regarded as ‘an odious personal charge’ against himself.
