From the moment in which the King decided upon personally superseding the Maréchal de Lesdiguières[12] in his command of the army in Champagne, he had been unwearied in his advice to the Queen for the efficient government of the country. He exhorted her to great caution in changing her ministers, earnestly impressing upon her the danger of entrusting state affairs to individuals whose probity and experience were not well assured, or of displacing others without great and serious cause. He, moreover, especially besought her never to permit the interference of foreigners in the internal economy of the kingdom, as by such ill-placed confidence she could not fail to alienate from herself the affections of all true Frenchmen; to uphold the authority of the Parliament, but on no account to countenance its dictation, confining its operations to their legitimate sphere, and enforcing its submission to her own delegated supremacy; never to suffer herself to be misled by her passions or prejudices, but to weigh all her measures maturely before she insisted upon their enforcement; to protect the Jesuits, but at the same time to be careful not to allow them to increase their numbers, or to form establishments upon the frontiers; to attach the nobility by favours which could not endanger the interests of the throne, but to be cautious in her concessions where they might tend to any undue aggrandizement of their former power and influence; and, above all, not rashly to undertake any war against the Huguenots until she had received full assurance of being enabled to terminate it successfully. As regarded the Dauphin, he declared that his greatest desire was to see him the husband of Mademoiselle de Lorraine, provided the Duke should not have other children; as, in such case, the French nation would be aggrandized by the territories of a state from which it had received much and grievous injury. He expressed, moreover, the greatest repugnance to the proposed marriage between Madame Elisabeth and the Infant of Spain, alleging as his reason the perpetual rivalry of the two powers, and the circumstance that the prosperity of the one must necessarily involve the abasement of the other; and finally he declared that were he compelled to give the hand of his daughter to a Spanish Prince, it should be to a younger brother who might be declared Duke of Flanders, and not to the heir to the throne.[13]