Annesley was baptized at the family seat of Farnborough. Little is known of his early life and education, although his grandfather, Arthur Annesley, earl of Anglesey, recorded in October 1681 that he and his elder brother, James ‘went to school’, presumably to Mr. Dyer’s establishment in Chelsea.
When Annesley became 4th earl of Anglesey in January 1702 he did not inherit all of his late brother’s estate. His brother had left all the estate he could to his younger brother, Arthur Annesley, later 5th earl of Anglesey, who had married Mary, the daughter of his friend John Thompson, Baron Haversham. As one newsletter put it the new earl had lost the family’s Irish estates worth about £6,000 p.a. but had retained the English estates worth about £1,200 p.a.
Anglesey first took his seat in the Westminster House of Lords on 3 Feb. 1702. He was an active member from the outset, being present at 63 sittings in the session of 1701-2, 63 per cent of the total, and 83 per cent of those for which he was eligible to sit. Anglesey brought two cases of breach of privilege before the House on 25 Feb. 1702. One concerned the illegal possession of his house in Bletchingdon, Oxfordshire, for five days from 29 Jan. 1702 by Charles Barret ‘for Mr. Annesley, after the said earl was in quiet possession’, the second concerned Henry Cole’s demand for the payment of rent from Anglesey’s Irish tenants, after the earl had discharged them from so doing. Both these issues were related to Anglesey’s dispute with his brother Arthur.
In the session of 1702-3, Anglesey was present at 60 sittings of the House, an attendance rate of 90 per cent. Anglesey was appointed on 17 Dec. to manage a conference with the Commons on the bill to prevent occasional conformity. Following some discussion of the amendments to this bill, on 18 Dec. he was named to the committee to search for precedents of bills with penalties begun in the Lords and also of bills whose penalties had been altered by the Lords; William Nicolson, bishop of Carlisle, recorded him attending the committee on 23 December.
In March 1703 the dowager countess was in litigation in chancery in order to secure her jointure of £2,000, during which she claimed that Anglesey, Haversham and Arthur Annesley had taken possession of her husband’s real or personal estate, the latter amounting to £30,000 made up of plate, cash debts and £14,000 of her own. She also claimed they had taken all the writings with intent to defraud her and that although the earl and Arthur Annesley were in dispute, they had both assured her that her jointure was safe.
Anglesey was absent from the beginning of the 1703-4 session on 9 Nov. 1703, attending first on 7 December. Nevertheless, he was present on 69 days, an attendance rate of 71 per cent. In or about November 1703 Charles Spencer, 3rd earl of Sunderland, forecast that Anglesey would favour the renewed attempt to pass the bill against occasional conformity, an assessment Sunderland reinforced in late November or early December. Anglesey duly voted for the bill on 14 Dec. 1703. On 18 Dec. he reported from the committee appointed to count the ballot for selecting peers to examine Bouchier and Ogleby over the ‘Scotch plot’. His name was included on a list of members of both Houses drawn up by Nottingham in 1704, which may indicate support for him over the plot. On 16 Feb. 1704 Anglesey acted as a teller on the question of whether to reverse the judgment in the case of Hassell v. Knatchbull and again on 25 Feb. on the question of whether to reverse the decree in the case of Rowe v. Cockayne. On 21 Mar. he acted as a teller on the question of whether to adjourn the proceedings on the recruiting bill, following which the bill was passed and Anglesey joined in signing the protest against it. On 24 Mar. he acted as a teller on a division on the motion that part of Sir John Maclean’s narrative relating to his examination on the ‘Scotch plot’ by Nottingham was imperfect.
Anglesey was absent from the beginning of the 1704-5 session on 24 Oct. 1704, attending first on 4 November. He attended 75 days of the session, which was 75 per cent of the sittings. Anglesey was listed as a likely supporter of the Tack in about November 1704.
In the general election campaign of 1705, Anglesey wrote to James Hamilton, 4th duke of Hamilton [S], in support of the successful candidate for Preston, his cousin, Francis Annesley‡.
Anglesey attended on 53 days of the 1706-7 session, 62 per cent of total. He protested on 3 Feb. 1707 against the Lords’ decision to reject a motion for a bill to prevent dangers that could arise from popish recusants. On 15 Feb. he argued for the postponement of the first article of the Union because he felt he needed to know what the Union was to consist of before he agreed to it in principle and duly acted as a teller for that motion.
Anglesey was also involved in legal proceedings in the House in this session, as a consequence of his marriage the previous year to Lady Henrietta Maria Stanley. This marriage involved Anglesey in litigation with her uncle, James Stanley, 10th earl of Derby. On 7 Feb. 1707 Anglesey’s mother-in-law, the dowager countess of Derby, petitioned the Lords relating to a legal dispute over her jointure and the current earl of Derby waiving his privilege. Bishop Nicolson commented on 10 Feb. 1707 that the ‘waiving of privilege was adjusted ‘twixt the earls of Derby and Anglesey’.
In the short session of April 1707 Anglesey attended four of the nine sittings of the House, 44 per cent of the total. In the 1707-8 session Anglesey’s attendance in the Lords dropped to 31 days, 28 per cent of the total, and he was named to seven committees of the House. On a printed list of the members of the first Parliament of Great Britain in May 1708 Anglesey was noted as a Tory.
James Johnston‡ in December 1708 referred to Tory leaders criticizing ministers: one of them was Anglesey, who when ‘speaking of augmentations and recruits said all was good for filling great men’s pockets’; however, it is not clear when he said this as he was not listed as attending the House until later in the session.
Anglesey was again missing from the opening of the 1709-10 session, attending first on 1 Feb. 1710. He was present at 35 sittings, 34 per cent of the total. He protested on 16 Mar. against the question that the Commons had proven the first article of their impeachment against Dr Sacheverell. On 20 Mar. he voted Sacheverell not guilty of high crimes and misdemeanours, duly protesting against the verdict. On 21 Mar. he protested against the sentence passed against Sacheverell. The Rev. Ralph Bridges listed Anglesey along with Henry Compton, bishop of London, Thomas Osborne, duke of Leeds, and John Sheffield, duke of Buckingham, as Tories who were critical of Sacheverell’s indiscretion, but believed that his actions did not merit an impeachment.
Anglesey was a key player in the schemes of Robert Harley, the future earl of Oxford, for a remodelled ministry, mainly as a means of satisfying the Tories. Arthur Maynwaring‡ picked this up in May 1710, writing that ‘anyone that had seen the fulsome joy and greatness that appeared between Lady Hyde and Lord Anglesey would have been sick’, and that he expected Sunderland to be replaced as secretary by Anglesey.
Anglesey’s appointment to the ministry was described by Sidney Godolphin, earl of Godolphin, on 9 July 1710 as ‘another very disagreeable alteration.’
Anglesey, Harley and Poulett were summoned to the cabinet on 13 Aug. 1710, a crucial set of appointments which led to the cabinet being balanced owing to the absence of Wharton and John Holles, duke of Newcastle, until Anglesey fell ill in September. He attended his last cabinet on 7 Sept. 1710.
At the end of August 1710 John Ward‡ expected Anglesey to be travelling to Ireland soon, presumably as Wharton’s replacement as lord lieutenant. The duchess of Roxburghe told her father, Nottingham, that Harley was triumphant at having brought both Anglesey and Dartmouth into employment rather than the leaders of the high Tories, Nottingham and Laurence Hyde, earl of Rochester.
Anglesey died unexpectedly at noon on 18 Sept. 1710 ‘of a very high fever, this being the 11th day’, and was buried at Farnborough.
In his will Anglesey left his estate in England and Ireland to his brother Arthur, now the 5th earl, subject to the payment of £1,000 to his wife, £200 to his cousin Francis Annesley, £100 to Vincent Oakley of the Middle Temple and an annuity of £500 to his sister Lady Elizabeth Gayer. His widow subsequently married John Ashburnham, earl of Ashburnham, in 1714, as his second wife.
