Ossory’s father had sat on the family interest for county Kilkenny from the Union until succeeding his brother as 19th earl of Ormonde in 1820. At the 1830 general election Ossory came forward for the county on the retirement of his uncle Charles Harward Butler Clarke. On the hustings his proposer admitted that at 22 he was ‘too young’ to have received the ‘benefit of a political education’ or training in ‘oratorical seminaries’, but requested that he be allowed to ‘serve an apprenticeship in Parliament’. Asked for his views by an opponent, he promised to ‘acquire a greater knowledge of politics than I at present possess’ and apologized for having refused to sign a requisition against ‘some taxes’, saying, ‘I forget the exact circumstances, but recall that it was proposed to me ... after a game of cricket, which was not exactly the time to consider it seriously’. Pressed further, he declared his support for a ‘moderate reform’ of Parliament (he was against the secret ballot and universal suffrage) and his ‘decided’ opposition to repeal of the Union, and agreed to assist the citizens of the city of Kilkenny, jointly controlled by his family and the earl of Desart, in regaining their chartered rights. Though he had ‘not considered’ the Irish Vestry Act ‘deeply’, he conceded that it might require ‘amendment’. He was returned unopposed.
He was listed by the Wellington ministry as one of their ‘friends’, but was absent from the crucial division on the civil list, 15 Nov. 1830. In his maiden speech, 14 Dec. 1830, he gave qualified support to a Kilkenny petition for inquiry into corporate abuses, observing that some of its statements might be ‘exaggerated’. On 21 Feb. 1831 he informed James Emerson of Belfast that he would support the extension of Littleton’s truck bill to Ireland.
At the 1832 general election Ossory, who evidently had not anticipated a dissolution before January 1833, was on an archaeological tour of Italy, and on the advice of friends retired.
Ossory died from an attack of apoplexy while sea bathing with his family near Loftus Hall, county Wexford, in September 1854. By the terms of his will, of which his wife, a lady of the bedchamber to the dowager Queen Adelaide, 1844-9, was sole executrix, he requested that during his son’s minority the family should follow his example by spending part of the year at Kilkenny. He was succeeded in the peerage by his eldest son James (1844-1919).
