The Cavaliers were so convinced of it that two of their number, among those who lived on good terms with him, Lord Hertford and Lord Broghill, made overtures to Cromwell in favor of Charles Stuart. "You can bring back the king on any conditions you please," said Lord Broghill, "and preserve with much less trouble and peril the authority which you possess." "The king can never forgive the blood of his father," said Cromwell. "You are but one of those who took part in that act, and you alone will have the merit of having re-established the king." "He is so debauched that he would ruin us all," replied the Protector, and he broke off the interview, leaving Lord Broghill convinced that he had himself contemplated this expedient.

In the country, many wearied and discouraged Cavaliers would willingly have accepted the return of monarchy, in the hope of seeing the legitimate monarch ascend the throne again in a short time. The Presbyterians, who were monarchists by nature, were protected by Cromwell, and preponderant in religious matters. The sectaries, who were not favorable to him, and who considered him lukewarm in religious matters, enjoyed under his government a liberty for which they felt grateful to him. Everything had succeeded with him for three years; almost all thought that his good fortune would go as far as his daring would have urged it, and manifested an inclination to confide in it, or at least to acquiesce.

Cromwell began to make overtures to his confidants in this great affair; he appeared yet to hesitate; exciting by his conversation their curiosity or their zeal, he skillfully urged them in the path which was to lead him to the end, always remaining in a position to stop or repudiate them.

He made use of the same policy for undermining Parliament and the army. The House had condemned to a cruel punishment John Naylor, a prophetic enthusiast accused of blasphemy. At the very moment of the execution, Cromwell demanded of Parliament why the fanatic had been removed from the jurisdiction of a jury, that bulwark of individual liberties so dear to Englishmen. Desborough proposed to prolong the tax of a tenth imposed upon the royalists for the maintenance of the army. Lord Claypole, son-in-law of the Protector, energetically opposed this measure, which was rejected. The majors-general thus remained alone exposed to the public hatred aroused on all hands by their exactions. The rancor felt towards them deprived the Protector of some of his most faithful allies.

While the friends of Cromwell were disunited, his enemies rendered assistance to his great design. Charles II., then at Bruges, where he received assistance from Spain, was preparing, it was said, an expedition. He possessed some trustworthy supporters among the Republicans, among others a man named Sexby, who promised to raise a popular insurrection which would become royalist as soon as Cromwell should have disappeared. Assassination was counted upon, and the assassin was already found. Miles Sindercombe, a bold soldier and an ardent Republican, passed his time in watching for the moment and in seeking the means of assassinating the Protector. On the 19th of January, 1657, Thurloe solemnly revealed the plot at the sitting of Parliament. Sindercombe was arrested, as well as two of his accomplices.

Public excitement was great. It was proposed to form a committee instructed to ask the Protector when it would be convenient to him to receive the expression of the opinion of the House. "I propose something more," said an obscure member, Mr. Ashe; "I would ask his Highness to take upon him the government according to the ancient constitution; then our liberties and tranquillity, the safety and the privileges of his Highness would be established upon solid foundations." A tumult arose; the motion of Mr. Ashe was violently opposed and warmly defended: it fell as an untimely measure; but the first landmarks were erected, the first step was made. One month later, the 22nd of February, Alderman Pack, member for the City of London, presented to the House of Commons a proposal entitled, "The humble address and remonstrance of the knights, citizens, and burgesses, now assembled in the Parliament of this Commonwealth." It was for the re-establishment of the monarchy and of the two Houses. The Protector was invited to take the title of king, and to designate his successor. After a violent discussion, the proposal was taken into consideration, and the debate postponed until the morrow.

While the House was discussing, some hundred officers, at the head of whom were Lambert, Desborough, and Fleetwood, son-in-law of Cromwell, presented themselves at the residence of the Protector. They implored him not to accept the title of king. "This title displeases the army," they said; "it is hazardous for your person and the three nations; it will make way for the return of Charles Stuart."

Cromwell immediately replied to them, "that the title of king need not startle them so dreadfully, inasmuch as some of them well knew it was already offered to him and pressed upon him by themselves when this government was undertaken, that the title 'king,' a feather in a hat, is as little valuable to him as to them. But on every occasion," he said, "they had made him their instrument;" and he briefly recalled all the arbitrary acts which he had accomplished, he said, at the instigation of the army. "The nation is tired of uncertain arbitrary ways, and wishes to come to a settlement," he continued. "By what this Parliament have done by their own mere vote and will with James Naylor, you will see that a check is necessary; what has happened to James Naylor may be any one's case some day. Does the fundamental law of the Protectorate empower me to check them?"