Although Eglinton came from staunch Presbyterian stock he was himself of a very different religious and political persuasion: an ardent Episcopalian, with pronounced Jacobite sympathies. A good speaker, with strong views, he was one of the leading lights on the Tory side in Scottish politics after 1710, but his passionate nature was restrained by the family responsibilities which weighed heavily on him and which could on occasion cause him to lose his nerve. His grandfather had taken up arms for the covenant in 1639 and after association with the Engagers suffered a heavy fine under the Protectorate. Eglinton’s father did nothing to relieve his estate from debt, and it took Eglinton himself years of ‘prudent and judicious management’ to recover stability, and even extend his holdings by purchase.
Mongomerie had a difficult relationship with his father, who had made over the family property to him after his first marriage: there were disputes over money, and in consequence, other family influences predominated.
Eglinton was not included on the court list of peers to sit in the first Parliament of Great Britain and seems to have felt neglected.
I never doubted our government here would be demolished, and our heritable jurisdictions, and that the power of the justices of [the] peace and in everything also, in process of time, will be the same with England; but I think since they have enlarged the powers of the justices, they will appoint new ones, and not allow us to be maltreated by the canaille of the country, for you know in the last nomination the most considerable of the gentry were kept out, for being against the Union.
His view of the Scottish court party was now astringent:
those who used to dictate here will think it a great change from threatening to take away or give places, and pensions, to be reduced to a humble entreaty at the next elections, and perhaps be less regarded than those who never had their powers, for nothing is so despicable as a cassen [thrown over] courtier.NAS, GD 3/5/867.
In the elections of 1708, although he had been counted on by the Scottish court party, he shifted his position late in the day: in Ayrshire he abandoned his uncle Francis, who was supported by the Queensberryites, in favour of an anti-Union candidate, and in the representative peers’ election he voted with Hamilton, even though this meant also voting for the Squadrone. Hamilton credited William Johnston, marquess of Annandale [S], for bringing over Eglinton (and two others) to ‘our interest’. Eglinton held the proxy of one of these, his brother-in-law, James Stewart, 5th earl of Galloway [S], and was also entrusted by his father-in-law Aberdeen, to present the latter’s list for him.
The disintegration of the Whig administration during 1710 reawakened his active interest in public affairs. Eglinton wrote to Colin Lindsay, 3rd earl of Balcarres [S], on 28 Aug.:
Though I was resolved never to have troubled myself about politics, yet the change of the ministry and the noise of a new Parliament has made me alter my resolutions, for I think something may chance to occur wherein I may be serviceable either to church or state and could I contribute to the good of either I would judge my time and money well bestowed, wherefore intend to use my interest that I may be elected one of the sixteen.NLS, Crawford and Balcarres mss, 9769/19/25.
In the Ayrshire election he found it easy this time to revert to family loyalty and give his interest to his cousin John Montgomerie‡, Francis’s son, who was standing with the support of Queensberry’s court party and when elected showed himself at first to be a Tory, albeit a moderate one.
It was not until 4 Dec. 1710 that Eglinton took his seat, having registered his proxy with Mar the day before. He was thereafter present on 52 per cent of all sitting days in the session. Though not recorded as attending again until 11 Dec., he was working on behalf of the Scottish Episcopalian minister James Greenshields, who was appealing to the Lords against a sentence passed against him by the Edinburgh magistrates for using the Church of England liturgy. Stirred by Eglinton’s enthusiasm, Greenshields praised him as ‘truly Episcopal’. Together with Greenshields’s principal supporter, William Nicolson, bishop of Carlisle, Eglinton canvassed various Scottish peers, not only strong Episcopalians but former Queensberryites like Seafield and David Leslie, 5th earl of Leven [S]. Meanwhile he joined English High Churchmen in pressing for the repeal of the General Naturalization Act of 1709: when the repeal bill was rejected in the Lords on 5 Feb. 1711 Eglinton and Balmerino subscribed the Tory protest. Evidently encouraged rather than discouraged by this outcome, Eglinton informed Nicolson the next day that in his opinion ‘Mr. Greenshields’s bill may be seasonably moved’.
During the recess, Eglinton pursued his demands for office. In August he asked for the vacant seat on the court of session. The rationale was that he had been turned out by the Squadrone in 1704 ‘for being against their act of security and not concurring with their limitations of the crown’, and while others who ‘left their places at that juncture, have either got others, or an equivalent’, he had received nothing.
In spite of his new appointment, when the session began on 13 Nov. 1711, Eglinton was still in Scotland. He might have hoped by his absence to remind Oxford of his value, but by 3 Dec. Mar had possession of his proxy. On 15 Dec. Eglinton wrote to Oxford both to emphasize his gratitude for his post but also to excuse his continuing absence. His preferment, he insisted, ‘puts me to the greater difficulty of expressing my sense of the favour, but without compliment, if your Lordship will admit me to the number of those you confide in, and look upon me as your firm friend, you shall never have reason to repent it’. He went on to express dislike of the continuing war and irritation at the allies’ interference in attempts to conclude a peace: ‘It makes my heart to bleed, that the Queen cannot change her ministry, nor offer to extricate her people from a bloody and expensive war, but every little neighbouring state and prince not privately, but openly in the face of the sun, intermeddle and prescribe the laws and rules.’ There was nothing he would not do:
to serve her Majesty in this juncture, and therefore, though my wife is extremely ill in her health and within few weeks of her time, and to leave her in that condition will be most uneasy to me, yet if I can add to strengthen the Queen’s friends by my coming to London, I will immediately upon a line from your Lordship take post, but upon the other hand, if there be no immediate service for me, pray you be so charitable to allow me to stay till my wife be brought to bed.Add. 70249, Eglinton to Oxford, 15 Dec. 1711.
Later that month, he was assessed as in favour of allowing Hamilton to sit as duke of Brandon, but before his arrival the Lords had already decided against Hamilton. Eglinton eventually appeared in the House on 14 Jan. 1712 (following which he was present on almost 63 per cent of all sitting days) and three days later, at a meeting of Scots peers at Hamilton’s London home, gave vent to his outrage at this ruling. He argued that if an act were to be passed asserting the queen’s prerogative to dispense British peerages, and the right of the Scots nobility to receive them, ‘then all is right again’. If not, he warned, ‘it is better for the Union to be dissolved’. At the same time, his fear of the Whigs made him doubtful of the utility of a parliamentary boycott, for all its likely impact on the ministry: ‘if we please he shall be absent’, he was reported as saying, ‘but if he be present by God he will never let the Whigs gain a vote of the Tories if he can help it’.
he hoped our folks would quit, but that they should gain nothing by it for we would all be at hand to establish the peace, and if it was an ill peace, by God he cared not, for he was resolved like Samson to pull down the house upon his enemies and himself.’Ibid. 150.
Eglinton also saw it as necessary to be present in the House to pursue measures to benefit Scottish Episcopalians. Having taken advice from Greenshields and Nicolson, he liked the idea of securing the ‘exemption of Episcopal clergy from Presbyterian discipline’, and worked with Nicolson to prepare for the arrival of the toleration bill from the Commons.
While Eglinton’s contribution to the proceedings of the House was much more subdued in March and April 1712, in May he supported the bill to appoint commissioners to establish the value of all grants made by the crown since 1688 and on the 28th of that month voted against the proposal for an address to the queen to order her army to take the offensive against the French.
On 9 Feb.1713 Oxford wrote to inform Eglinton that his presence would soon be required in London. Mar had expressed his confidence some time before that Eglinton would be one of those likely to take his place on time. Oxford hoped that ‘your Lordship’s zeal for your country will bring you up to perfect that good work you have been so instrumental in. I do assure you everything shall be made good to you.’
Eglinton remained in the House until 16 July 1713, but with a general election looming, and his wife’s health requiring a change of air, he was eager to return to Scotland.
Oxford’s failure to pay the salaries of the commissioners of chamberlainry resulted in several representative peers on the commission, including Eglinton, delaying their journey to Parliament until after the session had begun.
he was sorry to hear her majesty gave any credit to representations which had been made of the power and inclination of the Scots Presbyterians; that they wished destruction to her and her family was true enough, but, God be thanked, they could not effectuate it, and he could assure her Majesty, she had no reason to be the least apprehensive of them. The queen answered, she was told his lordship was violently bent against them, and had a great aversion to them. He replied, if zeal for the crown deserved such a construction, he owned it, but at the same time he did not doubt but perhaps her majesty might have heard another part of his character, viz. that he loved his money very well, and if that was true, nobody would imagine he would press a measure which would probably raise a rebellion, and consequently lay his estate waste, as it was situated in the most Presbyterian country of Scotland; but as that gave him an opportunity to know these people better than others did he would pawn his life and honour that they could not and dare not give her majesty the smallest disturbance on account of any measure she was pleased to set on foot.Lockhart Pprs. i. 450.
In general, however, he seems to have been more concerned to secure some further preferment, possibly as governor of Edinburgh castle.
Eglinton was not re-elected as a representative peer under the Hanoverians and remained a strong Tory. He had long been targeted by Scottish Jacobites as a potential recruit, and in January 1715 was suspected of having influenced other peers into supporting anti-Union addresses, but when it came to armed rebellion he proved a broken reed.
He died at Eglinton on 18 Feb. 1729, ‘to the great surprise’ and grief of his family. The necessity of providing for a quiver of daughters, and the irrevocable loss of government favour, meant that he left his estate indebted to the tune of £18,000.
