‘A very violent, hot and passionate person’, the rather paunchy figure captured by Kneller seems to be at odds with a man whose life, according to Macaulay, ‘was one long revel and brawl’.
Early years and trial for murder
Mohun succeeded to substantial estates in Cornwall based on Boconnoc, which had been in the family since the late 16th century, but in reality his inheritance comprised a series of crushing debts, and he seems not to have exerted much interest in the area. Mohun’s grandmother held on to the majority of the family estates as her jointure prior to her death in 1692, thereby precipitating a series of lawsuits over rights to various parts of the property.
In April 1691, Mohun’s sister, Elizabeth, was appointed one of the queen’s maids of honour and, later that year, Mohun further strengthened his ties to the Orby family by marrying Charlotte Mainwaring, stepdaughter of Sir Thomas Orby (her mother’s second husband who seems to have been his guardian’s brother). The new Lady Mohun was also granddaughter to the earl of Macclesfield. The marriage proved woefully unhappy, but the connection was the beginning of a long association with Macclesfield’s heir, Brandon (who was clearly already known to the family). Mohun’s continuing connection with the Orby family may have encouraged speculation that the young peer was sympathetic to the Jacobite cause.
Over the next few years Mohun lived a rakehell existence. Before he turned 21 he was involved in a series of quarrels and duels, at least two of which resulted in deaths. In December 1692 he quarrelled publicly with John Kennedy, styled Lord Kennedy (heir to John Kennedy, 7th earl of Cassillis [S]). The nature of the provocation is uncertain, but as Kennedy was a kinsman of James Hamilton, 4th duke of Hamilton [S], (later duke of Brandon) it was an early brush with a family with whom Mohun was to spend much of his adult life at loggerheads. The initial drunken brawl resulted merely in ‘pulling of noses and a cut or two’, but despite the king’s order that the two young men should be apprehended to prevent a duel, Mohun and Kennedy ignored the prohibition. In the subsequent swordplay both were wounded.
A few days after the duel with Kennedy, Mohun was caught up in a far more serious affray as one of the participants in the botched kidnapping of the well-known actress, Anne Bracegirdle, and the murder of her fellow actor, William Mountford.
The true reason for the acquittal is hard to determine. No doubt some peers were uncomfortable at sacrificing one of their own when he was still so young, but Mohun also appears to have been the beneficiary of a concerted effort on his behalf by his Macclesfield kinsmen. An attempt by Mountford’s widow to bring a private prosecution in the King’s Bench by using a process known as appeal of murder provoked ‘great discourse’ and threatened to perpetuate the matter, but when Mohun attempted to petition the House to prevent her from doing so, the Lords refused to act as no appeal had as yet been lodged.
In addition to the considerable disruption generated by his trial, Mohun also continued to be involved in disputes within his family about the control of the Mohun estates. On 21 Feb. Mohun’s mother presented an appeal to the House, complaining that Mohun had seized lands settled on her for her jointure, relying on his privilege to prevent any action being taken against him. The Lords refused to take any direct action in the matter in hand, but they did respond by drafting a new standing order denying to minors and to the widows of peers recourse to parliamentary privilege while saving their right to claim privilege of peerage.
1693-1702
In the aftermath of the proceedings against him that spring, Mohun’s health took a turn for the worse, and in October 1693 he was said to be lying dangerously sick at Bath. He had recovered by the spring of the following year when he was commissioned into the cavalry regiment commanded by his patron, Macclesfield (as Brandon had since become). In March he joined Macclesfield in taking part in the Flanders campaign.
Mohun seems to have avoided further serious trouble for the next two-and-a-half years, but in April 1697 he was again the subject of press attention following a duel with Captain Bingham in St James’s Park.
Incarceration seems to have done nothing to dampen Mohun’s spirits and in February the governor of the Tower, Robert Lucas, 3rd Baron Lucas, informed the House that he had been forced to confine Mohun to his chambers because he was ‘so exceeding rude that he could not tell how to deal with him’.
Mohun’s second brush with the hangman failed to curb his excesses. Along with Warwick he continued to provide the gossip sheets with plentiful instances of lurid bad behaviour, such as ‘their leading of some thousands of people, who heartily cursed them for it, out of Fleet Street, to see them shit in a saw-pit.’
By the close of the month they were back in England but Mohun delayed surrendering himself into Black Rod’s custody (as his companion had done), being advised by his friends to await the result of Warwick’s trial for Coote’s murder.
Mohun was sick again during the summer following the close of the session and was thought once more to be in some danger of losing his life. The news was greeted by at least one correspondent with little sympathy, the writer confiding, ‘I believe you will be of my mind that his death will be no loss to the nation.’
Mohun attended the prorogation day of 24 Oct. 1700, before taking his place in the House at the beginning of the new Parliament on 6 Feb. 1701, after which he was present on over 90 per cent of all sitting days. On 17 Feb. he was appointed one of the managers of the conference considering the Lords’ address to the king, and on 12 May he acted as one of the tellers for the division over whether to agree to the motion to reverse a decree in the cause Farrell v. White. On 4 June he served as a teller for the motion whether to pass the new Deal fresh water bill, which was carried by 26 votes, and the following day he acted as teller once more in the division whether to reverse a decree in the case Grosvenor v. Coy. Named one of the managers of the conferences concerning impeachments on 6 and 10 June, Mohun reported from two committees on 12 June, and on 24 June he was one of four peers nominated to inspect the balloting glass and determine which members of the House had been selected to act as commissioners for the union. The same day he was one of the tellers in the division whether to adjourn the House during discussion of the report of the commissioners for public accounts. The same month Mohun voted in favour of acquitting the Junto peers, John Somers, Baron Somers, and Edward Russell, earl of Orford.
Shortly after the close of the session, Mohun accompanied his patron, Macclesfield, on the embassy to Hanover.
Mohun returned to England in October.
The reign of Anne 1702 to death
Mohun’s change of fortune looked likely to be of short duration as, within weeks of the queen’s accession, it was rumoured that he was one of four new colonels likely to be removed from their commands.
Prior to the Christmas recess Mohun had been appointed one of the managers of the conference concerning the bill for preventing occasional conformity and in January 1703 he was estimated a likely opponent of the bill in a forecast compiled by Nottingham. Named a manager of a further conference concerning the measure on 9 Jan., on 16 Jan. Mohun voted in favour of adhering to the Lords’ amendment to the bill’s penalty clause. Three days later Mohun subscribed the protest at the resolution not to agree with the committee in omitting a clause from the bill for settling a revenue on Prince George of Denmark, duke of Cumberland, specifying that the prince could serve as a member of the Privy Council and sit in the House in the event of his outliving the queen. On 16 Feb. he acted as a teller for the division on whether to read the bill to establish a qualification for members of the Commons a second time (which was rejected by two votes) and the following day he served as one of the tellers on the question whether to agree to the motion concerning Admiral Sir George Rooke as well as being named one of the managers of the conference concerning the commissioners of public accounts. The same day he reported from the committee nominated to draft an address to the queen thanking her for her great care in not granting further licences to French immigrants and for her proclamation to apprehend those already present in the country without licence. Mohun had previously moved for an address to be presented to the queen requesting such an order from her.
After the close of the session, Mohun stood proxy to George Lewis, elector of Hanover (later King George I) at his installation as knight of the Garter.
Mohun returned to the House for the new session on 9 Nov. 1703, after which he was present on just over three-quarters of all sitting days. Early in the session he was again forecast as a likely opponent of the occasional conformity bill in a list drawn up by Charles Spencer, 3rd earl of Sunderland. The assessment was replicated in Sunderland’s second forecast later in November, and on 14 Dec. Mohun was, unsurprisingly, one of those to vote against the measure. Besides this, Mohun’s attention was again taken up with his own affairs. He lost no time in lodging an appeal against the decree overturning Macclesfield’s will, which handed an estate worth £3,000 per annum to the crown.
Mohun’s efforts to cultivate support for his legal action may explain his presence at a series of Whig entertainments held during the session, noted by Charles Bennet, 2nd Baron Ossulston (later earl of Tankerville). On 9 Feb. 1704 Mohun was present at one such dinner in company with Ossulston, Abergavenny and others, and two days later he attended a dinner hosted by Henry Herbert, Baron Herbert of Cherbury. On 22 Feb. he dined again with Ossulston, Abergavenny and Herbert in Black Rod’s chambers, and on 16 Mar. he dined once more in company with Abergavenny. On 24 Mar. Mohun subscribed the protest at the resolution not to put the question whether the information contained in Sir John Maclean’s evidence was imperfect. Three days later he joined Ossulston, Essex and Charles Montagu, 4th earl (later duke) of Manchester at a party at the Queen’s Arms.
Mohun took his seat at the opening of the new session on 24 Oct. after which he was present on just under 80 per cent of all sitting days. He was again the recipient of Abergavenny’s proxy on 20 Nov. (which was vacated on 4 Dec.) and two days later he was also entrusted with that of Charles Mildmay, 18th Baron Fitzwalter, which was vacated on 1 Feb. 1705. On 11 Dec. he proposed inhibiting the importation of Scots wool into England or Ireland. Three days later he moved a vote of thanks to John Churchill, duke of Marlborough and on 15 Dec. he again spoke out against the occasional conformity bill.
Mohun was reported to have resigned his colonelcy later that month, supposedly piqued at his failure to be promoted to the rank of brigadier (an omission that was rectified two years later).
In April Mohun was successful in securing a favourable judgment in a parallel action with Lady Henrietta Orby, who also had a claim on part of the Macclesfield estate, but concentration on his various legal suits to the exclusion of his other responsibilities began to cause comment. At the beginning of June Sidney Godolphin*, earl of Godolphin, complained to Marlborough that Mohun was avoiding his duty as a serving officer, noting with disgust, ‘here is Major General Harvey [Daniel Harvey‡], and my Lord Mohun, a brigadier walking in St James’s Park and every day in the chocolate house, while both their regiments are serving abroad.’
Mohun returned to the House for the new session on 22 Oct. after which he was present on approximately 58 per cent of all sitting days. On 6 Feb. 1707 he was one of a large party at the London home of Charles Seymour, 6th duke of Somerset, and on 3 Mar. he acted as one of the tellers for the division which saw the successful passage of the first enacting clause of the union treaty.
Mohun attended four days of the brief nine-day session of April 1707 before taking his seat in the new Parliament on 23 Oct. 1707, of which he attended 52 per cent of all sitting days. The following spring Mohun sought permission to sell his regiment to Colonel James Dormer, though he was at pains to assure Marlborough that his request was not on account of ‘any dislike to the service and that I shall always be as much your humble servant as if I continued in the service.’
Following the close of the session, Mohun was noted a Whig in a printed list of the Parliament of Great Britain (though the annotation may have been appended some time later in response to the Sacheverell trial). Despite his assurances to Marlborough, Mohun appears to have become disheartened at his failure to benefit more obviously from his support for the Junto and duumvirs, and in December 1708 it was reported that in common with a number of the erstwhile supporters, ‘Somerset and Lord Moon [sic], are outrageous against the Junto.’
It was, thus, apparently with some disgruntlement that Mohun returned to the House two days after the opening of the new Parliament on 18 Nov. 1708. Present on three-quarters of all sitting days, on 17 Jan. 1709 he reported from the committee considering the petitions of four Scots peers disputing the returns in the election for the representative peers. Four days later (21 Jan.) Mohun voted in favour of permitting Scots peers in possession of British titles to vote in the elections for Scots representative peers (also acting as one of the tellers for the division), and on 1 Feb. he reported from the committee nominated to calculate the numbers of votes entered for those Scots peers standing for election. Despite his apparent irritation with the Junto, Mohun’s adherence to the Hanoverian succession and to the Whig cause in general remained undiminished, and in March he moved for the removal of the Pretender from French dominions to be included in the address to the queen.
Mohun returned to the House at the beginning of the new session on 15 Nov. 1709, after which he was present on just over 70 per cent of all sitting days. Between 10 and 11 Jan. 1710 he reported from two sessions of committees of the whole considering William Hayward’s bill, which was adjudged fit to pass with amendments. Prominent in the business surrounding the trial of Dr Sacheverell during the session, Mohun acted as a teller in three votes relating to the proceedings (on 25 Feb., 14 and 16 Mar.) as well as chairing the committee appointed to examine the riots that had erupted in London in the wake of the opening of the trial, from which he reported on 2 March. During the subsequent debates he become embroiled in a heated exchange with Hamilton and on 20 Mar., unsurprisingly, found the doctor guilty of the charges laid against him.
Mohun’s well-known dissatisfaction with the Junto was no doubt the reason for his inclusion in one of Harley’s memoranda in July 1710 of those he hoped might join his new ministry. In October, although he assessed Mohun as a possible opponent, Harley continued his efforts to secure Mohun’s services, employing first the renegade Whig, Henry Mordaunt, 3rd earl of Peterborough, and then Mohun’s former mother-in-law, Lady Charlotte Orby, as intermediaries. Mohun explained to William Cowper, Baron (later Earl) Cowper, that he had been informed he might expect ‘any preferment he would choose if he would come into them’ and, perhaps more alluring still, that the new ministry had offered him the prospect of a satisfactory end to the ongoing legal battle with Hamilton. Despite this, Mohun remained unwilling to enter directly into measures with Harley, undertaking only that, ‘while they acted the interest of his country, he was already with them; if they should do otherwise, nothing should make him assist them.’
Mohun took his seat at the opening of the new Parliament on 25 Nov. 1710, after which he was present on 44 per cent of all sitting days. Absent for a few days between 29 Nov. and 4 Dec. Mohun covered his absence by registering his proxy with Ormond. Mohun spent the Christmas recess at Epsom thereby missing an attempt made by Richard Savage, 4th Earl Rivers, to call on him, presumably with a view to discerning how Mohun was likely to behave in the forthcoming debates on the peace.
During the summer relations between Mohun and Hamilton reached a new low point and in August there were reports of a ‘mighty noise’ concerning the two over their ongoing legal dispute.
Early the following year Mohun was successful in securing the House’s leave for him to insist on his privilege during the continuing legal action with Hamilton, and it was with a noticeably generous spirit that he granted Peter Minshull and his family (who were engaged in parallel suits with Mohun over part of the Macclesfield estate) further time to respond to his petition to overturn a chancery decree that had been awarded in their favour.
Amidst the increasing antagonisms caused by the legal actions over the Macclesfield estate, there were also signs that Mohun’s temper was beginning to give way. In March Peter Minshull, hoping to achieve redress from the Lords, complained to Oxford of the ‘violence and manifest injustice’ he had been subjected to both by ‘the late lords Macclesfield and present Lord Mohun’ in his efforts to settle the issue.
Having failed to resolve their dispute in the course of the session or during the months following the prorogation in June, in November 1712 Mohun and Hamilton tried once more to reach some form of settlement. On 13 Nov. a meeting between the two men and their lawyers descended into an acrimonious argument after Hamilton cast doubt upon the credibility of one of Mohun’s witnesses, only for Mohun to respond in kind that his man was quite as honest a man as the duke himself. The result was yet another challenge and on the morning of 15 Nov., having spent the night before carousing in a bagnio, Mohun along with his second, General George Maccartney, arrived at Hyde Park for his long-awaited confrontation with Hamilton. The result was a notoriously brutal and swift affair with neither of the principals apparently interested in wasting time with parrying. Mohun appears to have suffered a fatal stab wound almost at once. In the subsequent enquiries, there was some dispute as to whether it was Mohun himself or Maccartney who then dealt Hamilton a mortal blow. Some reporters claimed that Maccartney butchered Hamilton after Mohun’s death, but it seems likely that it was Mohun who succeeded in stabbing his enemy through the chest while he was on the floor with Hamilton leaning over him.
In the aftermath of the duel, some commentators, with Swift in the vanguard, claimed that the affair had been ‘a whiggish contrivance’ to prevent Hamilton from taking up his post as ambassador in Paris.
