Nevertheless the objections raised by the Council, not only to his acquirement of the government, but also to the marriage of his son with the daughter of M. de Soissons, which had been communicated to them by the Marquis de Rambouillet,[117] embittered his temper, and determined him to discover some means of revenging what he considered as an undue interference with his personal affairs.  The extraordinary imprudence of which he was soon afterwards guilty rendered him, however, for a time unable to indulge his vindictiveness, and even threatened to involve him in the disgrace which he was so anxious to see visited upon his adversaries.  In the first place, intoxicated by his newly acquired dignities, he affected the utmost attachment for M. de Soissons, who had exerted all his influence in his behalf; and remarked that the proposition lately made to him by the Prince for an alliance between their families was no longer so unequal as it had then appeared, although he was still aware that it would be a great honour conferred upon himself; but that as the Duc de Longueville was about to marry another daughter of the Prince, and that their governments were contiguous, the union of his own son with the sister of the bride might prove a mutual advantage, and of considerable service to M. de Soissons himself.  This unseemly boast he followed up by a still more flagrant proof of presumption; for, being anxious to assert his entire authority over the citadel of Amiens, he entered into a financial treaty with M. de Rouillac the lieutenant, and M. de Fleury the ensign of the fortress, and replaced them by adherents of his own, without the sanction of the Regent; after which he borrowed, on his own responsibility, twelve thousand livres from the receiver-general of the province for the payment of his garrison.

Such an unprecedented disregard of the royal prerogative had never before occurred in France; and it no sooner became known to the ministers than they hastened to represent it in its most heinous aspect to the Queen, impressing upon her in no measured terms the danger of such a precedent, which could not fail to bring contempt upon her authority, and to introduce disorder into the finances of the nation; and entreating her to remember that should she sanction an alliance between the imprudent favourite and a Prince of the Blood, she could no longer hope to restrain his extravagances.  Marie de Medicis was jealous of her dignity, and moreover fully conscious of the fault which had been committed by Concini, and her anger was consequently unbounded.  In the first burst of her indignation she refused to see Madame d’Ancre, whom she accused of having incited her husband to these demonstrations of disrespect towards herself; and her wrath was skilfully increased by the Princesse de Conti, who looked upon the favour of the low-born Leonora with impatience and disgust, and could not desire a more ready means of ensuring her discredit than that of following up the arguments of the ministers, of dwelling upon the little respect which had been shown to the person and privileges of her royal mistress, and of expatiating on the ruinous effect of so pernicious an example upon the discontented nobility.