For this purpose she despatched four nobles in whom she could confide to Soissons, to negotiate with the Princes, nor was it long ere they ascertained that individual jealousy had tended to create considerable disunion among them; and that each appeared ready, should any plausible pretext present itself, to abandon the others. Under these circumstances it was not difficult to convince the Due de Guise and his brother that no hostile design had ever been entertained against them, and to induce them to admit their regret at the hasty step which they had taken, together with their anxiety to redeem it. The Duc de Longueville was equally ready to effect his reconciliation with the Court; and having arranged with the royal envoys the terms upon which they consented to return, they were severally declared innocent of all connivance with the rebellious Princes. The Duc de Nevers, however, refused to listen to any compromise with the Crown; and, in defiance of the royal command, continued his endeavours to possess himself of the fortresses of Champagne, which were not comprised in his government.[258] The persevering disaffection of M. de Nevers occasioned the disgrace of Du Vair, who betrayed an indisposition to proceed against him which so irritated Marie de Medicis that she induced the King to deprive him of the seals, and to bestow them upon Mangot, making Richelieu Secretary of State in his place; that wily prelate having already, by his great talent and ready expedients, rendered himself almost indispensable to his royal patroness.