Courtown’s property and interests were in Ireland, and like his father and grandfather he was a Member of the Irish House of Commons. In England he acquired influential connexions by his marriage to a niece of Lords Cardigan and Bruce. Bruce appears to have considered returning him for Marlborough at the general election of 1768; and next, Lady Courtown asked Bruce to return her husband at the Great Bedwyn by-election of 1771:
I know it would make my Lord exceedingly happy [she wrote to Bruce, 11 Jan.], yet he would not offer himself to you because he thinks if you are under no other engagements you will be so kind as to think of him ... and that it would be only distressing you, but I thought you might imagine he would not choose to be at the expense, and I really believe he would very willingly.
But even when in 1774 Courtown was returned at Great Bedwyn it seems to have been merely as a stop-gap till Bruce could find a suitable candidate; and Courtown resigned soon after the general election. When in 1775 he was made a Privy Councillor in Ireland, Sir John Blaquiere, secretary to the lord lieutenant, wrote in his survey of the Irish Parliament:
In 1780 Courtown, who had now acquired an English estate, was appointed a lord of the bedchamber to the Prince of Wales: ‘Lord Courtown must have been every way displeasing to him, being a stupid, stiff Irishman’,
His Royal Highness has made no scruple to assign [Courtown’s] parliamentary conduct as the reason of his dismission [Sydney wrote to Rutland, 11 June]. The King feels this outrage most sensibly, and is determined to distinguish Lord Courtown in some manner or other. A place in Ireland ... has long been his object, as he does not mean to be an absentee from his house and property ... I am sensible of the difficulty under which you lie, but Lord Courtown is a man not without weight in Ireland, and I am persuaded that his well-known connexion with court, as well as the striking necessity of his being immediately distinguished, must appear as strong reasons for a preference at present.
Rutland gave an evasive reply, and on 25 June Sydney wrote again: ‘It is certainly of moment to the King’s service that he should be held up in a distinguished light after what he has suffered for his attachment to his Majesty.’
Courtown died 30 Mar. 1810.
