The first intimation the regent received of this conspiracy of the nobles was given by the Count of Megen soon after his return to the capital. "There was," he said, "an enterprise on foot; no less than three hundred of the nobles were implicated in it; it referred to religion; the members of it had bound themselves together by an oath; they reckoned much on foreign aid; she would soon know more about it." Though urgently pressed, he would give her no further information. "A nobleman," he said, "had confided it to him under the seal of secrecy, and he had pledged his word of honor to him." What really withheld him from giving her any further explanation was, in all probability, not so much any delicacy about his honor, as his hatred of the Inquisition, which he would not willingly do anything to advance. Soon after him, Count Egmont delivered to the regent a copy of the covenant, and also gave her the names of the conspirators, with some few exceptions. Nearly about the same time the Prince of Orange wrote to her: "There was, as he had heard, an army enlisted, four hundred officers were already named, and twenty thousand men would presently appear in arms." Thus the rumor was intentionally exaggerated, and the danger was multiplied in every mouth.
The regent, petrified with alarm at the first announcement of these tidings, and guided solely by her fears, hastily called together all the members of the council of state who happened to be then in Brussels, and at the same time sent a pressing summons to the Prince of Orange and Count Horn, inviting them to resume their seats in the senate. Before the latter could arrive she consulted with Egmont, Megen, and Barlaimont what course was to be adopted in the present dangerous posture of affairs. The question debated was whether it would be better to have recourse to arms or to yield to the emergency and grant the demands of the confederates; or whether they should be put off with promises, and an appearance of compliance, in order to gain time for procuring instructions from Spain, and obtaining money and troops? For the first plan the requisite supplies were wanting, and, what was equally requisite, confidence in the army, of which there seemed reason to doubt whether it had not been already gained by the conspirators. The second expedient would it was quite clear never be sanctioned by the king; besides it would serve rather to raise than depress the courage of the confederates; while, on the other hand, a compliance with their reasonable demands and a ready unconditional pardon of the past would in all probability stifle the rebellion in the cradle. The last opinion was supported by Megen and Egmont but opposed by Barlaimont. "Rumor," said the latter, "had exaggerated the matter; it is impossible that so formidable an armament could have been prepared so secretly and, so rapidly. It was but a band of a few outcasts and desperadoes, instigated by two or three enthusiasts, nothing more. All will be quiet after a few heads have been struck off." The regent determined to await the opinion of the council of state, which was shortly to assemble; in the meanwhile, however, she was not inactive. The fortifications in the most important places were inspected and the necessary repairs speedily executed; her ambassadors at foreign courts received orders to redouble their vigilance; expresses were sent off to Spain. At the same time she caused the report to be revived of the near advent of the king, and in her external deportment put on a show of that imperturbable firmness which awaits attack without intending easily to yield to it. At the end of March (four whole months consequently from the framing of the covenant), the whole state council assembled in Brussels. There were present the Prince of Orange, the Duke of Arschot, Counts Egmont, Bergen, Megen, Aremberg, Horn, Hosstraten, Barlaimont, and others; the Barons Montigny and Hachicourt, all the knights of the Golden Fleece, with the President Viglius, State Counsellor Bruxelles, and the other assessors of the privy council. Several letters were produced which gave a clearer insight into the nature and objects of the conspiracy. The extremity to which the regent was reduced gave the disaffected a power which on the present occasion they did not neglect to use. Venting their long suppressed indignation, they indulged in bitter complaints against the court and against the government. "But lately," said the Prince of Orange, "the king sent forty thousand gold florins to the Queen of Scotland to support her in her undertakings against England, and he allows his Netherlands to be burdened with debt. Not to mention the unseasonableness of this subsidy and its fruitless expenditure, why should he bring upon us the resentment of a queen, who is both so important to us as a friend and as an enemy so much to be dreaded?" The prince did not even refrain on the present occasion from glancing at the concealed hatred which the king was suspected of cherishing against the family of Nassau and against him in particular. "It is well known," he said, "that he has plotted with the hereditary enemies of my house to take away my life, and that he waits with impatience only for a suitable opportunity." His example opened the lips of Count Horn also, and of many others besides, who with passionate vehemence descanted on their own merits and the ingratitude of the king. With difficulty did the regent succeed in silencing the tumult and in recalling attention to the proper subject of the debate. The question was whether the confederates, of whom it was now known that they intended to appear at court with a petition, should be admitted or not? The Duke of Arschot, Counts Aremberg, Megen, and Barlaimont gave their negative to the proposition. "What need of five hundred persons," said the latter, "to deliver a small memorial? This paradox of humility and defiance implies no good. Let them send to us one respectable man from among their number without pomp, without assumption, and so submit their application to us. Otherwise, shut the gates upon them, or if some insist on their admission let them be closely watched, and let the first act of insolence which any one of them shall be guilty of be punished with death." In this advice concurred Count Mansfeld, whose own son was among the conspirators; he had even threatened to disinherit his son if he did not quickly abandon the league.