The Marshal advised the King to come to Guienne himself, saying that in his presence matters might be settled.  The Huguenots, hearing of this proposal, supposed the King would take possession of their towns, and, thereupon, came to a resolution to take up arms.  This was what I feared; I was become a sharer in the King my husband’s fortune, and was now to be in opposition to the King my brother and the religion I had been bred up in.  I gave my opinion upon this war to the King my husband and his Council, and strove to dissuade them from engaging in it.  I represented to them the hazards of carrying on a war when they were to be opposed against so able a general as the Marechal de Biron, who would not spare them, as other generals had done, he being their private enemy.  I begged them to consider that, if the King brought his whole force against them, with intention to exterminate their religion, it would not be in their power to oppose or prevent it.  But they were so headstrong, and so blinded with the hope of succeeding in the surprise of certain towns in Languedoc and Gascony, that, though the King did me the honour, upon all occasions, to listen to my advice, as did most of the Huguenots, yet I could not prevail on them to follow it in the present situation of affairs, until it was too late, and after they had found, to their cost, that my counsel was good.  The torrent was now burst forth, and there was no possibility of stopping its course until it had spent its utmost strength.

Before that period arrived, foreseeing the consequences, I had often written to the King and the Queen my mother, to offer something to the King my husband by way of accommodating matters.  But they were bent against it, and seemed to be pleased that matters had taken such a turn, being assured by Marechal de Biron that he had it in his power to crush the Huguenots whenever he pleased.  In this crisis my advice was not attended to, the dissensions increased, and recourse was had to arms.

The Huguenots had reckoned upon a force more considerable than they were able to collect together, and the King my husband found himself outnumbered by Marechal de Biron.  In consequence, those of the pretended reformed religion failed in all their plans, except their attack upon Cahors, which they took with petards, after having lost a great number of men, M. de Vezins, who commanded in the town, disputing their entrance for two or three days, from street to street, and even from house to house.  The King my husband displayed great valour and conduct upon the. occasion, and showed himself to be a gallant and brave general.  Though the Huguenots succeeded in this attempt, their loss was so great that they gained nothing from it.  Marechal de Biron kept the field, and took every place that declared for the Huguenots, putting all that opposed him to the sword.