The animosity of M. de Guise had grown out of his jealousy, which had been excited by the ostentatious attentions paid by Richelieu to the Princesse Gonzaga de Nevers, to whom he was himself tenderly attached, and who was, moreover, the idol of the whole Court. Eagerly, therefore, did he enter into the views of his aggrieved associates; and, as their determination to resist the presumption of the haughty minister necessarily involved precautionary measures of no ordinary character, they lost no time in despatching a secret messenger to solicit the support of the Archduke and the Spanish agents. With Don Miguel of Salamanca they found little difficulty in concluding a treaty; and this desirable object attained, they effected a second with the Court of Vienna; while Jean François Paul de Gondy, who subsequently became celebrated during the Fronde as the Cardinal de Retz, was instructed to apprise their friends in Paris of the contemplated revolt, and to urge their co-operation. The Duc de Guise meanwhile proceeded to Liége, in order to levy troops for the reinforcement of the rebel army; the several envoys having been instructed to declare that the Princes were still devoted to their sovereign, and that they merely took up arms to protect themselves against the violence and perfidy of the Cardinal-Minister. Anxious to strengthen their faction at home, Soissons, confiding in the frequent professions of attachment which had been lavished upon him by Gaston d'Orléans, wrote to that Prince to explain their motives and purposes, and to induce him to join in the conspiracy. For once, however, Monsieur, much as he delighted in feuds and factions, declined to take any part in their meditated resistance to the ministerial authority, his own position having been rendered so brilliant through the policy of the Cardinal that he feared to sacrifice the advantages thus tardily secured; while, moreover, not satisfied with returning evasive answers to M. de Soissons, which induced that Prince to pursue the correspondence under the belief that his arguments would ultimately induce Monsieur to join their party, he had the baseness, in order to further his personal interests with the all-powerful minister, to communicate to him the several letters of the Count immediately that they reached him.