Legge was the grandson of Edward Legge of Geashill, King’s County, Ireland, former vice-president of Munster. His father, a royalist commander in the Civil Wars, served with distinction under Prince Rupert, later duke of Cumberland, and was later taken prisoner and involved in conspiracies against the Cromwellian regime. Legge himself was a first cousin of Sir Edward Spragge‡, which may have assisted his naval career, although he received a captain’s commission from rear admiral John Kempthorne‡ in April 1667.
Legge entered the household of the duke of York as groom of the bedchamber in 1668. In October 1669 he succeeded his father as a captain of a foot company in the Tower. On the death of his father in 1670, he inherited the family lands in England and Ireland. In 1671 he was appointed captain of The Fairfax by York. In November 1672 he was named as the lieutenant governor of Portsmouth, again under York, succeeding as governor when York declined to take the Test in August 1673.
Legge’s reward for his loyalty was a peerage. Initial reports suggested he might take the title of Tilbury, an extinct barony.
Dartmouth’s position as a member of two groups—followers of the duke of York and court Tories—saw him play a key leadership role in attempting to unite both to act as a counterweight to Robert Spencer, 2nd earl of Sunderland and George Savile, earl (later marquess) of Halifax. Thus, following the disgrace of Edward Seymour‡, Thomas Thynne, Viscount Weymouth, asked Dartmouth in February 1683 how he should act towards him.
In June 1683 Evelyn described him as ‘a great favourite of the duke’s, an active and understanding gent. in sea affairs’.
While Dartmouth was absent he left Sir Christopher Musgrave and Richard Graham in charge of his affairs. They suggested that in order to clear his ‘considerable’ debts he should dispose of his mastership of the horse to York. Rochester, consulted on the idea, pointed out that Dartmouth was unwilling to sell the post ‘being desirous to continue in the duke’s immediate service’.
John Dolben, archbishop of York, commended Dartmouth in April 1684 for following the advice of his friends ‘in mastering his passions and all the resentment and ill-usage’ he had during his absence.
Despite his many offices or perhaps because of them, Dartmouth had some difficulty living within his means and securing his family’s financial future. On the occasion of his promotion to master of the ordnance, the future duke of Marlborough wrote to him that
I wish that you may live long to enjoy it, and as I wish you as well as any friend you have, so I will take the liberty to tell you that you will not be just to your family, if you do not now order your affairs so as that you may, by living within your self, be able in time to clear your estates. I will say no more on this subject at present, but when we meet you must expect me to be troublesome if I find you prefer your own living before your children’s good.HMC Dartmouth, i. 55-56.
By the end of 1683, despite York’s better fortunes and his own promotion, Dartmouth was somewhat depressed about his prospects and feared the actions of his enemies. York reassured him however that he would ‘stand by’ him, and that the combined favour of himself and the king would prevail.
On 10 Jan. 1685, Weymouth evinced to Halifax his unhappiness over plans to appoint Dartmouth as recorder of Lichfield under a new charter for the city. Weymouth blamed the corporation’s espousal of Dartmouth on ‘a little physician’, Sir John Floyer, Dartmouth’s brother-in-law.
One of York’s first appointments upon ascending the throne was to name Dartmouth as master of the horse. Dartmouth was now at the centre of the Court and perceived as a key patron in the search for royal favour.
Dartmouth first sat in the Lords on 19 May 1685, the first opportunity after the succession of James II. He was introduced to the House by Ferrers, and John Berkeley, Baron Berkeley of Stratton. At the next sitting, on 22 May, he was appointed to the committee for privileges and the committee for petitions. On his last day in attendance, 1 July, he acted as a teller in opposition to Charles Cornwallis, 3rd Baron Cornwallis on the question on whether the privilege cause of Theophilus Hastings, 7th earl of Huntingdon, should be heard the following day. He had sat on 23 days of the session, before its adjournment on 2 July, a little over 74 per cent of the total. He had been named to a further ten committees. He attended the prorogation of 4 Aug., and was also present on 9 Nov., when the session resumed, attending on each of the 11 days before the prorogation on 20 November. Indeed, on 10 Nov. he wrote to Christopher Monck, 2nd duke of Albemarle, on behalf of the king to hasten him up to London, intimating that the House would be called over on the following Monday.
On 14 Jan. 1686 Dartmouth was one of the peers summoned for the trial of Henry Booth, 2nd Baron Delamer (later earl of Warrington), and acquitted him of the charges.
In December 1685 Reresby had noted that Dartmouth was a supporter of Rochester and his brother Henry Hyde, 2nd ear of Clarendon, rather than of Sunderland, Churchill and the lord chancellor, George Jeffreys, Baron Jeffreys.
On 28 Apr. 1687 Dartmouth entertained the king with a splendid dinner at Blackheath.
Probably because Dartmouth was a known confidante of James II, other contemporaries throughout 1687-8 accounted him as a supporter of the king’s religious policies. Although in January 1687 Morrice reported that Dartmouth would not ‘declare’, presumably meaning his support for repeal of the Test Act and penal laws, by February he thought that Dartmouth had concurred ‘to the great point’.
Dartmouth was present at the birth of the Prince of Wales on 10 June 1688, and was reported to have celebrated it afterwards.
On 24 Sept. 1688 the king appointed Dartmouth overall commander of his fleet, his main objective being to prevent William of Orange landing his forces in England.
Others were not so charitable: in December 1688 Roger Morrice reported that Dartmouth had challenged James Cecil, 4th earl of Salisbury, for the ‘base reflections’ made by the earl to the king ‘for his ill conduct of the navy’.
On 28 Nov. 1688 Dartmouth wrote to the king advocating that he call together his ‘great council and see which way a Parliament may be best called for I fear nothing will give a stop but that’.
On 29 Nov. the prince of Orange invited Dartmouth to join his fleet with that of the Dutch and to declare for the Protestant religion and English liberties. Dartmouth accepted the invitation on 12 Dec., following James II’s first flight from London. He stressed that he had always been a true son of the Church of England, and welcomed William’s intervention for ‘supporting our religion, laws, liberties and properties; not doubting, according to your highness’s declaration, but you will prosecute the same with the utmost regard and tenderness to the person and safety of the king, my master’. The king’s withdrawal he attributed to an unwillingness ‘to be a witness of, or consenter to what the laws and a free Parliament (which myself and the fleet addressed for 11 or 12 days ago) shall inflict on his evil advisors’.
Ironically, two days later Dartmouth received James II’s orders (dated 10 Dec.) to take the fleet to Ireland to join with Richard Talbot, earl of Tyrconnell [I].
Meanwhile, the peers assembled at the Guildhall had sent letters on 11 Dec. to Dartmouth to ensure the two fleets did not fight with each other and to remove Catholic officers. On receipt of this letter Dartmouth called a council of war on the 13th, and replied on the 15th, referring to the assembled peers as the means ‘to preserve the king, my master, and establish the laws and properties and the protestant religion’.
In response to Dartmouth’s missive, William communicated on 16 Dec. his approval of Dartmouth’s actions, particularly his purging the fleet of Catholic officers and asked that he might have the benefit of the admiral’s advice once the fleet had returned to the Nore. On James II’s second departure, Dartmouth rhetorically asked Feversham, ‘what could make our master desert his kingdoms and his friends’? When Rochester informed Dartmouth that the Lords at the Guildhall had recognized William as head of the government and that a Convention would meet on 22 Jan. 1689, he counselled him to do nothing but obey William’s orders strictly. On 10 Jan. William ordered Dartmouth to attend him, and on 15 Jan. Dartmouth finally met William at Whitehall and delivered a full account of the state of the fleet. He was relieved of his commands in the navy and the ordnance.
Dartmouth attended on the opening day of the Convention, on 22 Jan. 1689. On the following day, he was named to the committee for privileges and the committee for petitions. On 29 Jan. he voted in favour of the resolution that a regency was the best way to preserve the Protestant religion and the nation’s laws.
On 27 May 1689 Halifax recorded a conversation with William III about Dartmouth, ‘upon the occasion of his brother Legge, he said he had some thought of allowing him a pension, but he would see how he behaved himself’.
Dartmouth was present when the new session began on 23 Oct. 1689, being named to the committee for privileges, the committee for the Journal and the committee for petitions. On 13 Nov. he again received the proxy of Ferrers. On 19 Nov. he entered his protest against the passage of the bill to prevent clandestine marriages. He was present on the last day of the session, 27 Jan. 1690, having attended on 66 days, just over 90 per cent of the total, and been named to a further six committees. Dartmouth waited on the king at the end of the session and was respectfully received. When Arthur Herbert, earl of Torrington, gave up the vice-admiralty in April 1690, the king offered the post to Dartmouth, who declined it saying ‘he would live peaceably and quietly under his government, but could not serve him in that place; for he had been brought up under King James, and always professed friendship to him, and received great advantages from him, and in gratitude could not fight against him’.
In February 1690 Dartmouth backed the candidature of Nottingham’s brother, Edward Finch‡ at Cambridge University.
Dartmouth took his seat for the 1690-1 session when it opened on 9 Oct. 1690. On 30 Oct. he protested against the passage of the bill to clarify the powers of the admiralty commissioners. He again received the proxy of Ferrers on 8 December. He attended on the day the session was adjourned, 5 Jan. 1691 (when he was named to several conferences on the bill to suspend the navigation acts), at the further adjournments of 31 Mar., 28 Apr., and on 26 May (when Parliament was prorogued), having been present on 58 days, nearly 80 per cent of the total, and been named to a further 18 committees. He also attended the further prorogation of 30 June 1691.
James II’s secretary of state, Preston, had been captured, at the end of 1690, together with various documents from the exiled king’s supporters concerning his restoration. None of the documents were signed by Dartmouth, but he was implicated by Preston. By February 1691, Henry Sydney, Viscount Sydney (later earl of Romney), had passed the information on to William III.
Dartmouth offered £30,000 bail which was refused.
Dartmouth died in the Tower on 25 Oct. 1691, while ‘in bed with his lady’.
