In the second week in March, Louis XIII quitted Paris and marched on Orléans, in order to compel _Monsieur_, who was threatening civil war, to return to his obedience. The Marquis de Bassompierre requested permission to accompany his Majesty, which was readily accorded, and his uncle furnished him with money to defray the expenses of this journey. On learning of the King’s approach, Gaston fled towards Burgundy, accompanied by the Duc de Roannez, the Comte de Moret, and some troops which he had raised. Bellegarde, Governor of Burgundy, declared in his favour, but made no attempt to raise the province in insurrection; and the prince proceeded to Franche-Comté and thence to Lorraine. The King followed his brother so far as Dijon, where he launched a Declaration against his companions (March 30), and then retraced his steps. The fact that _Monsieur_ had again retired to Lorraine had incensed him against Charles IV and all his subjects, and he sent to inform the Marquis de Bassompierre that “it was not agreeable that he should follow him or even remain in France.” When, towards the end of April, Louis XIII returned to Paris, the marshal solicited his liberty; but his request was refused. Soon afterwards he fell ill “from a very dangerous swelling of the stomach, arising perhaps from his not having taken the air,” for, for some reason which he does not tell us, he had not left his room since he entered the Bastille two months before. So ill did he become that he thought he was dying, but having been persuaded to take daily exercise on the terrace, his health soon began to improve. About the same time, a loss more bitter even than that of his liberty befell Bassompierre. The Princesse de Conti, to whom he was secretly married and was undoubtedly most tenderly attached, died at the Château of Eu on the last day of April, a victim, according to her contemporaries, to the grief which the misfortunes which had overwhelmed those whom she held dear had occasioned her. For, not only had the Queen-Mother been disgraced and her husband sent to the Bastille, but her eldest brother, the Duc de Guise, had deemed it prudent to go into voluntary exile in Italy, to escape a worse fate. Very discreet in general concerning the names of the ladies with whom he had successes--“_Bassompierre fait l’amour sans dire mot_,” writes a Court poet of the time--the marshal preserves about his relations with the princess a scrupulous reserve, and his restrained emotion when he announces her death is the only indication of his sentiments for her which are to be found in his _Mémoires_: