Hay’s father had succeeded a kinsman as earl of Kinnoull in May 1709 by virtue of a regrant of 1704. From then until his own succession to the earldom, Hay was known to his contemporaries by his courtesy title of Viscount Dupplin. His father was described in 1710 as a ‘court Tory’ with an income of nearly £4,000 per annum.
News of an impending match between Dupplin and the daughter of Robert Harley was being reported in London at the start of July 1709. Thomas Bateman added on 5 July that Dupplin was to have £6,000, ‘but what estate the gent. has I know not, however ’tis like to be much better by the death of the late Lord Kinnoull. This has been talked of for some time’.
to carry his son into Scotland; but that he liked the woman and would not be governed. That it was a match purely of interest, and projected when it was thought Mr Harley had power with the lord treasurer [Sidney Godolphin, earl of Godolphin], in order to get an arrear that they claim upon the customs.
The gist of this had been confirmed to Maynwaring by Auditor Edward Harley‡, who had added that the marriage articles
were ready to be signed the day before Mr Harley was turned out; and that he had fairly told his client that his brother would be out of his employment the next day; upon which there was some stop; but the young man had a liking to his mistress, and would not leave her.Add. 61460, ff. 19-22.
As John Ker, duke of Roxburghe [S], wrote to James Graham, duke of Montrose [S], that the marriage ‘has done more than anything we could have done or said ourselves’.
Dupplin and his wife intended, initially at least, to reside in Scotland and on 19 Oct. 1709 Bateman reported that they had left Herefordshire for Scotland. By the 21st they had arrived at Dupplin Castle.
Parliament was finally dissolved on 21 Sept. 1710, and Dupplin returned to England, where he was found a seat at Fowey. He carried a letter from John Murray, duke of Atholl [S] (of 19 Sept.) informing Harley that he and Kinnoull were ‘taking measures to support the queen at this juncture in Scotland’, and one from Kinnoull (upon Dupplin’s departure on 27 Sept.) in which the earl explained that ‘finding that my son had so great a mind to be in the House of Commons and that he was impatient to be with you, your daughter and I have parted with him’. On 4 Oct. Dr William Stratford expressed surprise that Dupplin could ‘be spared at this time in Scotland’ given the need for ‘one of his interest and authority to countenance the elections there’.
With Dupplin’s election to the Commons and Kinnoull’s to the Lords, both men were bound to play a role in Harley’s management of the Scottish members at Westminster. Dupplin’s role was to supply information, which allowed Harley to neutralize the influence of Queensberry, the Scottish secretary.
Well integrated into Harleyite circles, Dupplin played a significant role as a mediator between Harley and his allies. In May 1711, he joined in the celebrations in London for Harley’s promotion to an earldom and the lord treasurership. On 30 June he wrote to Oxford from York Buildings relating to Atholl’s demands for recompense after Dupplin had sought his help in the 1710 elections. He then went into Herefordshire.
On 22 Nov. Dupplin informed Oxford that he had summoned to London the Scottish peers including his father, following Mar’s strategy of writing to ‘a great many of our sixteen and to those of the Commoners he has influence with to come up immediately’.
The new parliamentary session began on 7 Dec. 1711 with ministerial benches in the Lords depleted by the delayed Scots (only five were present), and a ministerial defeat on an amendment to the address in the Lords over the question of ‘no Peace without Spain’. In the meantime Dupplin was returned unopposed on 18 Dec. at a by-election at Fowey after accepting government office. The creation of James Hamilton, duke of Hamilton [S], as duke of Brandon in the British peerage, and the loss of the question in the Lords on 20 Dec. over Hamilton’s right to sit in the Lords under his new title, saw discussions involving Scottish peers on how they should respond, one of which took place at Kinnoull’s residence in London. Eventually their call for a petition to the queen asking for redress was signed by the representative peers present in London and by the Scottish commoners, including Dupplin.
Oxford’s response to his faltering majority in the Lords was to strengthen the ministry by persuading the queen to create 12 new peers on whom he could rely (and incidentally reduce his dependence on the Scottish representative peers). Dupplin was one such ally, and on 31 Dec. he was created Baron Hay in the British peerage, although he was almost universally referred to outside the House as Dupplin until he succeeded to the earldom of Kinnoull. Significantly perhaps, the other 11 creations were dated the following day, giving him precedence. Certainly Lady Strafford felt it worth noting on 1 Jan. 1712 that, ‘I find Lord [Windsor Thomas Windsor, Viscount Windsor [I], created Baron Mountjoy] expected to have been the first but Lord Dupplin is before him’, Windsor being an Irish viscount, while Dupplin was the heir to a Scottish earl.
In his first session in the Lords, Dupplin attended just over three quarters of the available sittings after he had taken his seat and was named to 13 committees. On 26 Feb. 1712 he gave his proxy to Samuel Masham, Baron Masham, vacated by his next attendance on 7 March. On 25 Mar. Masham returned the compliment, and on 31 Mar. Dupplin again gave his proxy to Masham, although he was present on the following day. On 3 May he received Boyle’s proxy (vacated on the 12th); on 7 May that of John Campbell, 2nd duke of Argyll [S] (vacated on the 19th) and on 20 May that of William Ferdinand Carey, 8th Baron Hunsdon (vacated on the 22nd). He was recorded as present on the attendance list for 28 May but was recorded as absent in the printed division list on the ‘restraining orders’ given to James Butler, 2nd duke of Ormond.
Dupplin continued to be heavily involved in Scottish political affairs, presenting to the queen an address from the burgh of Inverness in October 1712.
The central position of Dupplin in the network governing Scotland was made clear by letters written by Mar, such as that of 13 Jan. 1713 from Edinburgh, in which he informed Oxford that ‘I desired Lord Dupplin last post to let you know that I had yours of the 6th and the proxies safe’ for the by-election for a Scottish representative peer. On 27 Jan. Dupplin’s daughter was christened, with both Oxford and Swift in attendance. Early in February he presented an address to the queen from the burgh of Perth.
On 9 Apr. Dupplin was present in the Lords for the start of the new parliamentary session. He attended on 37 days, 56 per cent of the total, and was named to six committees. Bateman noted that Dupplin was not in the House on 19 May when the ‘duchess of Newcastle’s appeal from an order of the court of chancery’ was heard against Thomas Pelham Holles, 2nd Baron Pelham (later duke of Newcastle), a matter of some interest to the Harleys, given the prospective alliance between Oxford’s heir and the duchess’s daughter.
When in late September 1713 the recently married Lord Harley and his wife (Henrietta Cavendish Holles) went to Wimpole, a seat that had passed to Lady Harley on her father’s death, Dupplin went with them. This it would seem was mainly because ‘they have no company that comes near ’em’, and none of Lady Harley’s relatives ‘took any notice of her’, given the dispute with her mother. On 8 Oct. Dupplin wrote to Oxford from Wimpole, putting him ‘in mind’ of James Livingston, 5th earl of Linlithgow [S]: ‘I told him by your order that he was to have £900 at three payments at Edinburgh which I suppose he’ll expect to hear of from the earl of Mar, when he comes there. I hope you will have good news from my Lord Mar the beginning of the week’, a reference to the forthcoming election of representative peers at Holyrood. Dupplin was expected in Old Windsor on the 15th. While his wife stayed in London with her sister, the marchioness of Carmarthen, who was expecting her first child, Dupplin returned to Wimpole on the 26th, leaving his wife to comment ‘when he returns I know not’.
Dupplin was present in the House on 16 Feb. 1714 for the start of the session. Thereafter he attended on 59 days, 78 per cent of the total, and was named to four committees. He attended for the vote of 5 Apr. on the danger to the succession, but on 12 Apr. registered his proxy in favour of Thomas Mansell, Baron Mansell (vacated the following day). This was almost certainly for anticipated close divisions on the response to be given to the queen’s reply to the address on dangers posed by the Pretender, which was carried by two proxy votes. On 20 Apr. he again assigned his proxy to Mansell (vacated by his return on the 23rd). On 24 Apr. his wife noted that he had gone to Old Windsor and would return on the following Monday (26th), a regular occurrence at this time.
Oxford lost office on 27 July 1714, but with the queen falling dangerously ill almost immediately, on 30 July George Granville, Baron Lansdown, suggested to Oxford through Dupplin that he should attend the council meeting that had been adjourned until the following day.
Dupplin died at Ashford, Yorkshire on 29 July 1758. He was succeeded by his son Thomas Hay* [1851], as 2nd Baron Hay and 9th earl of Kinnoull [S], who had also served as Member for Cambridge, 1741-58. His second son Robert Hay Drummond, became archbishop of York.
