The Melville family were strongly identified with ‘Revolution principles’ and a Protestant succession, but in the long run family and local rivalries proved just as important in determining Leven’s political allegiances and parliamentary conduct. With the benefit of hindsight, the Jacobite George Lockhart‡ expressed mixed feelings about him: Leven, he wrote,
in the beginning of his life was so vain and conceity [sic], that he became the jest of all sober men; but as he grew older, he overcame that folly in part, and from the proudest became the civilest man alive. He was a man of good parts and sound judgment, but master of no kind of learning… He was born and bred an enemy to the royal family, and therefore cheerfully embraced, and significantly promoted, everything against its interest. However, he was no ways severe, but very civil to all the cavaliers.Lockhart Pprs. i. 90-91.
Leven, who had inherited the title from his cousin, Catherine Leslie, suo jure countess of Leven, and taken her surname of Leslie, had accompanied his father into exile in the United Provinces, where Melville had gone to avoid arrest after the exposure of the Rye House Plot. Leven then travelled in Germany and, through the favourable recommendation of the Hanoverian court, secured a commission in the army of the Elector of Brandenburg. In this capacity he was able to assist the prince of Orange in diplomatic negotiations with the Elector.
The two Melvilles continued in office throughout William’s reign, Leven following in his father’s wake, although by 1700 their relations with James Douglas, 2nd duke of Queensberry [S], the head of the court party, were ambivalent, poisoned in part, perhaps, by the presence in Queensberry’s counsels of their enemies the Dalrymples, and also by Leven’s personal losses in the Darien fiasco (he had subscribed £2,000 to the Company of Scotland, which he could ill afford).
Leven did not immediately benefit from the return to power of his erstwhile friends in the ‘Revolution interest’, Patrick Hume, earl of Marchmont [S] and John Hay, 2nd marquess of Tweeddale [S]), as part of the ‘New Party’ administration of 1704, for another key member of the New Party (or Squadrone Volante, as it became known) was John Leslie, 9th earl of Rothes [S], his deadly enemy in both family affairs and Fife politics. Rothes insisted that Leven be excluded.
Queensberry’s friendship proved of further benefit to Leven after the duke recaptured control of the Scottish administration.
As a Scottish commissioner Leven took part in the negotiations to unite Scotland and England, despite military commitments, his contribution reflecting a genuine zeal for the idea of union. He also lost no opportunity to explain to English listeners that Scots Presbyterians, contrary to rumour, were equally enthusiastic, while Episcopalians were to a man against union and against providing for a Hanoverian succession.
Leven was now firmly anchored in Queensberry’s inner circle, and the duke’s political lieutenant, John Erskine, 22nd earl of Mar [S], observed in relation to the selection of the first cohort of representative peers in the united Parliament, that Leven ‘could not be left out’. Similarly, he was among those members of the Scottish administration whose presence was judged to be necessary at London once the Union had been approved in Edinburgh, but he was soon obliged to return to Scotland to help maintain order there.
In May 1707 Leven succeeded his father in the earldom of Melville but it was as earl of Leven that he took his seat in the Lords on 23 Oct. 1707. He was present on 74 days of the session, 69 per cent of the total, and was named to 18 committees. He acted as a teller on 29 Jan. 1708, on the question of whether to agree to the resolution that the complaints had been duly proved against Captain William Kerr. On 5 Feb., in a debate on the bill to complete the Union, he supported an unsuccessful attempt to delay until October the proposed abolition of the Scottish Privy Council.
Leven was active in the general election of June 1708, on behalf of the court party against the combined interest of James Hamilton, 4th duke of Hamilton [S], and the Squadrone, against whom he was especially bitter: he opposed Squadrone candidates in Buteshire and Perthshire, as well as Fife, and worked to bring some cavalier lords to support the court list of representative peers.
Leven was in Edinburgh on 14 Oct. 1708 when he wrote to Charles Spencer, 3rd earl of Sunderland about troop movements, but by the 29th he was at Stamford en route to London, having left Newcastle on the 25th.
Leven resumed his seat at the start of business on 15 Nov. 1709, attending on 74 days, almost two-thirds of the total and being named to 15 committees. Both Rothes and Hamilton courted his interest in the by-election for Dysart Burghs, the writ for which was issued after a long delay on 17 December. Hamilton eventually secured Leven’s interest and his candidate was returned in January 1710.
Leven’s candidate had defeated Rothes’s nominee in Fifeshire in 1708, but in the changed circumstances of 1710, both men sought agreement. However, George Hay, styled Viscount Dupplin (later Baron Hay and 8th earl of Kinnoull [S]) confidently asserted to Harley that ‘both of them will be disappointed for the [Lord] Lyon [Sir Alexander Areskine‡, 2nd bt.] will carry it’, and he proved correct.
Leven was still in office, but a target for Tory place-hunters. On 14 Dec. 1710 Ilay noted to Harley that Leven, Glasgow and Seafield were ‘all in town, making their court; the first two are supported by Queensberry’.
Leven remained useful to the ministry because of his contacts with the Presbyterian clergy, and was praised by John Murray, duke of Atholl [S], for his contribution, as an elder, in the General Assembly in April 1712.
After the death of Queen Anne Leven was anxious to re-emphasize his Hanoverian credentials: he participated in the proclamation of George I in Edinburgh and hurried south to greet the new king. He was favourably received as the king remembered encountering him at the Brandenburg Court.
Leven died on 6 June 1728.
