In consequence of this letter Montagu was recalled, and found himself but coldly received at Court, and all hopes of a place under Government were at an end. The ex-Plenipotentiary now threw himself into all manner of contending intrigues of a political nature. He was accused of receiving a large bribe from Louis XIV. to compass the impeachment and ruin of Lord Danby (Treasurer) who was very obnoxious to the French Government, and an enemy to the Roman Catholics; yet at the same time he took a prominent position in the popular party. He was said to have been instrumental in bringing over Louise de la Quérouaille, afterwards Duchess of Portsmouth, and to have endeavoured to persuade her to use her influence with the King to exclude his brother from the succession. Finally his vote for the exclusion bill rendered him so obnoxious at Court, that he thought it best to depart once more to Paris with his wife and children. Hence he was summoned by a sad catastrophe, he had lent his magnificent house in Bloomsbury to the Earl of Devonshire, whose servant, in airing one of the rooms, set fire to it, and the “noble mansion” was burned to the ground. The conflagration was witnessed by Lady Rachel Russell, who says: “I heard a great noise in the square, and sent a servant to know what it was, and they brought me word Montagu House was in flames. My boy awaked and said he was nearly stifled, but being told the cause, would see it, and so was satisfied, and accepted a strange bed-fellow, for the nurse brought Lady Devonshire’s youngest boy, wrapped up in a blanket.” The loss was computed at £30,000; but Montagu rebuilt it on a more magnificent scale. Collins says: “It is not exceeded in London.”
Under William III. Montagu’s star was once more in the ascendant; he being one of the Lords who invited over the Prince of Orange. In 1689 he was created Viscount Monthermer and Earl of Montagu, and attended their Majesties’ coronation in his new dignity. In 1690, while engaged in beautifying and laying out Boughton, his excellent wife, who called herself Countess Montagu, died, but he soon gave her a successor. The new made Earl was not content with his coronet, and coveted the “strawberry leaves.” He applied to the King for a dukedom, mentioning among many other cogent reasons: “I am now below the younger branches of my family, my Lord Manchester and my Lord Sandwich;” also that he had taken to his second wife, the daughter of the Duke of Newcastle; and above all that he had been first and last to advocate the cause of William. “I hope it will not be to my disadvantage that I am alive, and ready to do so again, instead of having lost my head with Lord William Russell.” The King refused the dukedom, but showed Lord Montagu much favour, and was his visitor at Boughton, in Northamptonshire where the Court was sumptuously entertained.
Collins says: “My Lord was content with his fortune, and would accept no office save the one he had bought.” Of this he had been unlawfully deprived by James II., who bestowed it on Lord Preston. My Lord Montagu thought himself bound in honour to bring Preston to account, and when the office was restored to him and considerable damages awarded, he was so considerate of Lord Preston’s ill circumstances that he generously forgave him not only the damages, but the costs of the suit.
Queen Anne bestowed upon him the coveted dukedom; in the fourth year of her reign she created him Marquis of Monthermer, and Duke of Montagu. His first wife died in 1690; when he lost no time in soliciting the hand of the relict of Christopher Monk, second Duke of Albemarle, and daughter and sole heiress of Henry Cavendish, Duke of Newcastle. He does not appear to have been so disinterested in his views where money was concerned as Collins would have us believe; since this lady, in spite of her enormous wealth, was a confirmed lunatic, and an obstacle to their union existed in the fact that she had announced her resolution of wedding no one but a sovereign. Montagu was accordingly presented to her as the Emperor of China, and after a short period of eccentric wooing they were married. Until her death the poor maniac was addressed as Empress of China, and served on the bended knee. Lord Ross wished to marry her, and when the Duke prevailed in his suit wrote the following lines:—
“Insulting Rival, never boast
Thy conquest lately won;
No wonder if her heart was lost,
Her senses first were gone.
From one that’s under Bedlam’s laws
What glory can be had?