Liddell, the eldest son of one of north-east England’s leading coal owners, became a popular hero in the region when, following two extremely bitter and expensive contests, he defeated two Whigs to become Tory member for Northumberland in 1826.
At the 1837 general election Liddell was brought forward by Lord Londonderry for Durham North. He declared that it was the duty of the electors to rally round ‘the existing institutions of the state – the Throne, Lords, Commons and the Established Church’ and following an acrimonious contest he was returned in second place.
A frequent speaker, the majority of Liddell’s contributions in his first Parliament reflected his vehement opposition to the new poor law. He was particularly critical of the ‘bastardy clauses’ which saw children taken into the workhouse, and as a member of the select committee on the Poor Law Amendment Act, he assiduously pressed witnesses on bastardy, revealing that he had undertaken his own inquiries into the issue.
Returned unopposed at the 1841 general election, he supported Peel on most major issues, but his desire to remain simultaneously loyal to his family’s commercial interests and the ministry saw him equivocate on Peel’s plan to impose a duty on the export of coal. He looked with ‘great anxiety’ to the ‘financial experiment’, but gave the plan his qualified support, 14 June 1842, and during a debate on the budget, he maintained this position even though he believed the duty to be ‘an injudicious and impolitic tax’, 3 May 1843. Dividing against Peel, he was in the minority for the appointment of a select committee to investigate the effects of the coal duty on exports, 12 June 1843, but, following taunts from the opposition, insisted that he was perfectly consistent in supporting a duty that was only required because of the ‘blunders and bungling policy’ of the previous administration, 4 June 1844. Unsurprisingly, he congratulated Peel for subsequently abolishing the duty, 14 Feb. 1845. Liddell also focused his attention on the issue of animal cruelty, introducing a bill to counter dog stealing in the metropolis, 9 July 1844, 11, 25 June 1845, and chairing the select committee on the issue.
Liddell praised the ministry for the poor law amendment bill, which ‘removed most of his objections’, 18 July 1844, and staunchly defended Peel’s Irish policy, arguing that Russell’s motion for an inquiry into distress in the country would not solve its problems, 14 Feb. 1843. Having backed the ministerial plan for the corn laws (the sliding scale), 14 Feb. 1842, he continued to oppose free trade in corn, 24 June 1842, 3 Feb. 1843, and in one of his lengthiest known speeches, he criticised Peel’s decision to repeal, declaring that he ‘should never present himself to his constituents as an advocate for popular favour by supporting measures of which he did not approve’, 27 Jan. 1846. After further similar interventions, 23 Feb., 3 Mar. 1846, he divided against repeal, 15 May 1846. In the first year of Russell’s subsequently formed ministry he maintained his protectionist instincts, arguing against repeal of the navigation laws, 22 Jan., 9 Feb. 1847. Appointed to the select committee on the issue, even though he had opposed its formation, he insisted that his presence ‘would be a guarantee to the country of a fair investigation of the subject’, 16 Feb. 1847. He subsequently pressed Russell to be free from ‘all representations as to a fanciful analogy between laws giving protection to agriculture and laws affording security to British shipping’, 2 July 1847.
At the 1847 general election Liddell stood down as MP for Durham North. His earlier insistence that it was his duty to consider the feelings of ‘the large and independent portion of the constituency’ had soured his relationship with Londonderry, who felt that, as his patron, he should be answerable only to him.
In his brief tenure as member for Liverpool Liddell was a zealous advocate for the British shipping interest. Although he conceded that the repeal of the navigation laws had not precipitated the economic ruin of British shipping, 12 July 1853, in a debate on the address, he argued that an unpredicted consequence of repeal was that the rise in foreigners employed on British ships had compromised the efficiency of crews, and was therefore contributing to the recent ‘grievous losses’ at sea, 31 Jan. 1854. He subsequently opposed the opening up of the coasting trade to foreign vessels, warning that ‘in our eager search after gain we might lose, in the decay of the discipline and efficiency of our men, the main element of our national strength’, 3 Feb. 1854.
In March 1855 Liddell succeeded his father as second baron Ravensworth. In the Lords he continued to speak frequently on the coal and shipping interests. A staunch opponent of the disestablishment of the Irish church, he was created earl of Ravensworth and baron of Eslington for services to the Derby and Disraeli ministries, 2 Apr. 1874.
