King’s father sat in the Irish Parliament for Boyle, 1776-83, and county Cork, 1783-90, 1791-97, before succeeding as 2nd earl of Kingston in 1797.
In 1822 King started for a vacancy in county Sligo at the prompting of his elder brothers George, who had succeeded as 3rd earl of Kingston in 1799 and owned property there, and Robert, 1st Viscount Lorton. The local opposition complained that as Kingston’s ‘protegé brother’ he would ‘vote on political questions by the dictation of his lordship’, and warned against electing a non-resident at the behest of ‘two lordly brothers’ and the ‘aggrandizement of a proud family, whose head is without principle’.
A regular but mostly silent attender, King gave steady support to the Liverpool ministry.
At the 1826 general election King, having ‘amply proved himself’ to his former opponents, was returned unopposed.
I am no bigot, nor can I assume to arrogate to myself the appellation of ‘Saint’, though I believe I have already been canonized by the Association, at least that assembly seem inclined to confer on me the distinctive consequences of sanctity, ‘proscription and persecution’. I trust ... government will shield me, and others similarly circumstanced, from eventual martyrdom. I wish all ... cared as little for the malevolence of Papist agitators as myself, as I shall never shrink from giving my humble support in or out of Parliament to the principles I profess, under any circumstances of personal hazard or threatened hostility ... Although I have long suffered from severe and repeated attacks of illness, I shall be in my place in the House.
Add. 40395, f. 152.
Admitting that he was ‘no practised debator’, 6 Feb., he complained that he had been ‘denounced by an illegal Association’ as an ‘enemy of my country’, but said he would ‘never be intimidated by any menace from any body ... to give my vote contrary to my conscience’. He brought up constituency petitions with which he ‘totally differed’ in support of Catholic relief that day, and 12, 14 Feb. He voted against repeal of the Test Acts, 28 Feb. Next month Lorton sought to dispel rumours ‘industriously spreading’ in Sligo of King’s ‘intention to retire in consequence of an intended appointment for him on a foreign station’. ‘There is no foundation whatever for such a report, nor any probability of his going abroad’, he informed O’Hara, 25 Mar.
At the 1830 general election King offered again, claiming to be ‘divested of all party bias’. Pressed at the nomination about his beliefs, he explained that he had opposed emancipation ‘on principle alone’ but now ‘bowed to that alteration’, and promised to oppose ‘oppressive legislation’ and ‘uphold the liberty of the press’, even though he had ‘been taunted as the old general and the lame old pensioner’ by the Sligo Observer. ‘Although I am no professed orator’, he added, ‘I have made some speeches’. After a three-day contest he was returned in second place.
King was appointed colonel of the 1st West India Regiment in 1834, awarded the KCB the following year and promoted to lieutenant-general at the coronation brevet of 1838. He died at Grove Lodge, near Windsor, in November 1839, ‘shattered by wounds that for 40 years preyed on his health without impairing his spirit’, and attended by the same physician who had seen him ‘struck to the earth on the sand-hills of Holland, crippled to all appearance for life, with grievous wounds, of which he bore the deeply entrenched scars to his grave’.
