As a loyal Tory and the heir to an earldom, Compton was a convenient choice for Robert Harley, earl of Oxford, as one of his ‘dozen’ new peers appointed to the House in December 1711. Compton had long been thought a dependable young man. He and a handful of others were recommended to Daniel Finch, styled Lord Finch (later 8th earl of Winchilsea and 3rd earl of Nottingham), by Finch’s father, Daniel Finch, 2nd earl of Nottingham, as ‘more suitable friends’ than those with whom Finch was thought to be associating while a student at Oxford.
Following his return, Compton was elected for Warwickshire on his father’s interest in the 1710 general election.
Compton’s name was included on a list compiled by Oxford on 27 Dec. and his writ was dated the following day. On 29 Dec. he was included in another list compiled by Oxford of peers to be contacted during the Christmas recess. The next day he wrote to William Legge, earl of Dartmouth, communicating his gratitude for the honour, though there was some doubt as to whether he would be able to return to London from Northamptonshire in time for the resumption of the session on 2 Jan. 1712. This may suggest that he had been made aware of his promotion relatively late in the day.
Given the reason for Compton’s early summons to the Lords, it is unsurprising that Jonathan Swift noted the new peer as a likely supporter of the ministry in an assessment composed in advance of the new session of April 1713. Compton took his seat at the opening of the session on 9 Apr. and on 13 June he was estimated by Oxford as being in favour of the French commerce bill. Compton and his father may have expected further favours in return for their loyalty to the ministry in the session and, following its close, Northampton wrote to Oxford to remind him of their assiduous attendance (Compton had been present for just over 70 per cent of all sitting days).
Compton took his seat at the opening of the new Parliament on 16 Feb. 1714 and once again proved himself to be diligent in his attendance, attending just over 91 per cent of all sitting days in the session. On 6 May he received the proxy of his close associate Charles Bruce, Baron Bruce (later 3rd earl of Ailesbury), which was vacated on 26 May. Forecast by Nottingham as a likely supporter of the Schism bill, Compton was again entrusted with Bruce’s proxy on 21 June, which was vacated nine days later.
Compton attended 8 days of the brief 15-day session that met in the wake of the queen’s death. Although he continued to attend the House throughout the remainder of his life, as a Tory he found himself proscribed by the new regime and he played little further part in political life, though he was later offered a dukedom by King George II at the suggestion of his uncle, Wilmington, which he refused.
