The prospect of possessing so powerful an ally strengthened the hopes of the royal exiles; and immediately upon the arrival of Monsieur in the Low Countries, the mother and son began to concert measures for the success of their difficult and dangerous undertaking. The first impediment which they were called upon to surmount was their total inability to defray the expenses of a powerful army, and to secure the necessary funds for maintaining a secret correspondence with their French adherents. The munificence of Isabella supplied all their personal wants, but even her truly regal profusion could not be expected to extend beyond this point; and it was ultimately agreed that both parties should forward at all risks their jewels by a trusty messenger to Amsterdam for sale.

This had scarcely been accomplished when intelligence reached the Archducal Court of the trial of the Maréchal de Marillac, ostensibly for peculation, but, as the Queen-mother and her son were only too well aware, simply for his adherence to their own cause. In vain did they protest against so iniquitous a measure; in vain did they entreat the interference of their friends in his behalf, and even menace his judges with their personal vengeance, individually and collectively, should they be induced to pronounce his condemnation; Richelieu in his plenitude of present power overruled all their efforts; and the unfortunate Maréchal, who had incurred the hatred of the Cardinal from his favour with Marie de Medicis, was sentenced to lose his head by the majority of a single voice, and was executed on the following day; while his unhappy brother expired a short time subsequently in the fortress of Châteaudun.[170]

Meanwhile the Court of Brussels became a scene of dissension and violence. The favourites of the Queen-mother and those of the Duc d'Orléans were engaged in constant struggles for supremacy; the Duc de Bellegarde and the President Le Coigneux had refused to accompany Monsieur, who was consequently entirely under the influence of Puylaurens, with whom he passed his nights in the most sensual and degrading pleasures; while Marie de Medicis, under the direction of her constant companion and confidant Chanteloupe, spent her time in devotional duties, and in dictating to the hired writers by whom she had surrounded herself, either pamphlets against the Cardinal, or petitions to the Parliament of Paris.

Alarmed by the execution of Marillac, Monsieur, however, roused himself from his trance of dissipation; and disregarding the entreaties of the Duc de Montmorency, resolved to join the army which Gonzalez de Cordova, the Spanish Ambassador, was concentrating at Trèves, at the instigation of Charles de Lorraine, who was anxious to delay the threatened invasion of his own duchy by the French troops.

On the 18th of May Gaston d'Orléans accordingly took leave of the Court of Brussels; when the Infanta, not satisfied with having during the space of four months defrayed all the outlay of his household, accompanied her parting compliments with the most costly and munificent gifts, not only to the Prince himself, but also to every nobleman and officer in his service. About the neck of Monsieur she threw a brilliant chain of carbuncles and emeralds, from which was suspended a miniature portrait of the King of Spain. Numerous chests of wearing apparel, linen, and other requisites for the forthcoming campaign, swelled his slender baggage to a thoroughly regal extent; while her treasurer was instructed to deliver into his hands the sum of one hundred thousand patagons,[171] with which to defray the expenses of the journey.[172]

Having spent a fortnight at Trèves, and received the troops promised by Philip of Spain, the Prince resolved at once to prosecute his intention of entering France; a resolution which was earnestly combated by Montmorency, who represented that he was yet unprovided with the necessary funds for the maintenance of the troops, and with the means of defence essential to the success of the enterprise. Urged, however, as we have stated, by the Duc de Lorraine, and presuming upon the prestige of his name, Gaston refused to listen to this remonstrance; and after having traversed the territories of his brother-in-law, he hurriedly pursued his march through Burgundy at the head of his slender body of Spanish cavalry. Contrary, however, to his expectations, he was not joined by a single reinforcement upon the way, although his position as heir-presumptive to the Crown secured him from any demonstration of resistance. Langres and Dijon closed their gates against him, the magistrates excusing themselves upon the plea that they held those cities for the King; and on his arrival in the Bourbonnais, after devastating all the villages upon his route, the imprudent Prince was met by a request from M. de Montmorency that he would march his troops through some other province, as no sufficient preparations had yet been completed for his security in Languedoc. Once embarked in his rash attempt, however, Gaston disdained to comply with this suggestion; and pursued his way towards the government of the Duke, closely followed by ten thousand men, who had been despatched against him by Richelieu, under the command of the Maréchal de la Force.

Our limits will not permit us to do more than glance at the progress of this rash and ill-planned campaign, which, in its result, cost some of the best and noblest blood in France. Suffice it that the Cardinal, alarmed by the rapidity with which Monsieur advanced towards Languedoc, and rendered still more apprehensive by the defection of the Maréchal-Duc de Montmorency, lost no time in inducing the sovereign to place himself at the head of his army, in order to intimidate the rebels by his presence; while, on the other hand, the States of Languedoc had been induced through the persuasions of their Governor to register (on the 22nd of July) a resolution by which they invited the Duc d'Orléans to enter their province, and to afford them his protection; they pledging themselves to supply him with money, and to continue faithful to his interests.[173]

Montmorency, on his side, had received from Spain a promise that he should be forthwith reinforced by six thousand men, and a considerable amount of treasure for the payment of the troops; but Philip and his ministers, satisfied with having kindled the embers of intestine war in the rival kingdom, suddenly abated in their zeal; no troops were furnished, and the whole extent of their pecuniary aid did not exceed the sum of fifty thousand crowns, which did not, moreover, reach their destination until the struggle was decided.

Thus Montmorency found himself crippled on all sides; and when the rashness of Gaston had directed the march of the royal army upon Languedoc, he was in no position to make head against them. Nevertheless the brave spirit of the Duke revolted at the idea of submission, and he accordingly prepared to protect himself as best he might by the seizure of a few fortresses; and, finally, he received Monsieur at Lunel, on the 30th of July. Their combined forces amounted only to two thousand foot-soldiers, three thousand horse, and a number of volunteers, together with three pieces of ordnance; while, being totally destitute of funds, there could remain but little doubt as to the issue of the expedition.