Stuart was one of the four illegitimate children fathered by the 9th Lord Blantyre in his liaison with Harriet Teasdale: Colonel John Stuart died of wounds received at the battle of Rolica in 1808, and Major Charles Stuart (?1777-1854) served in the Bengal army.
Stuart was brought forward for Huntingdon in May 1824 by the Dowager Lady Sandwich on Lord Ancram’s succession to the peerage; he appears to have been a substitute for his half-brother Montagu, who was then preoccupied with his naval career.
Stuart voted with the Liverpool ministry in defence of the prosecution of the Methodist missionary John Smith in Demerara, 11 June 1824, and for the Irish unlawful societies bill, 25 Feb. 1825. He divided against Catholic relief, 21 Apr., but, much to Huntingdon corporation’s dismay, voted for it, 10 May 1825. Lady Sandwich was reported to have demanded his compliance on the ground that the question did not relate to India.
Stuart was returned unopposed for Huntingdon in 1826 despite rumours that he would retire to provide William Henry Fellowes* with a safe seat. Challenged to explain his equivocation on Catholic relief, he denied that he had bowed to the ‘petticoat government’ of Lady Sandwich: he had opposed it in deference to public opinion, but had subsequently voted for it because it would improve the condition of Ireland. He refused to be drawn on the equity of an extended franchise at Huntingdon; but, currying favour with the freemen, he claimed that the failure of the householders’ petition had confirmed their privileges against ‘speculative and factious attacks’.
Stuart stood again for Huntingdon in 1830, presenting himself as an independent, and was returned after a nominal contest. He declared that he would go to Parliament ‘unfettered as to the tea monopoly’, but that as ministers had his confidence on ‘most points’ he would generally defer to them.
Stuart died in April 1833. In his will, dated 22 July 1830 and proved under £20,000, he made provision for his wife and confirmed her jointure of £800 for life. He left £10,000 to furnish marriage settlements for each of his two daughters. Among the residuary legatees were his son James (d. 31 Aug. 1833), Charlotte Chapman, a daughter of his wife’s first marriage and his remarkable nephew, Sir James Brooke (1803-68), the first raja of Sarawak.
