The reason for Montgomery’s appearance in the south is to be found in the peril threatening Béarn and Navarre at this time. Montluc had conceived the idea that Béarn might be conquered while its ruler was absent. The parlement of Toulouse energetically favored the project and on November 15, 1568, had issued an _arrêt_ placing Béarn under its jurisdiction.[1397] In the early months of 1569 efforts were made with some success to corrupt the captains in the Béarnais army.[1398] When the plan was broached to the duke of Anjou he enthusiastically approved it. The time was auspicious, for it so happened that the suggestion coincided with his victory at Jarnac. Exactly a week after the battle[1399] he detached the seigneur de Terride with instructions to report to Montluc, for the duke thought Montluc could not be spared from Guyenne.[1400] This order was a bitter disappointment to Montluc, who wanted to conquer Béarn himself, and he ever thereafter cherished a hatred against Marshal Damville[1401] who was away from his government at the time with the duke of Anjou, believing that Damville’s jealousy of him was responsible for it. This may very probably have been so, for, as will be seen later, the enmity between the two was extreme. Terride’s campaign began well. One by one, in rapid order, the fortified towns of Béarn collapsed before him—Pontacq, Morlaas, Orthez, Sauveterre, and Pau—the birthplace of Henry of Navarre, while the country round about was wasted with fire and sword. The queen of Navarre’s lieutenant was driven to find refuge in Navarrens, whose château, reputed to be impregnable, had been built by Henri d’Albret during his enterprises against Spain. On April 27, 1569, Terride began the siege of the castle of Navarrens.[1402] Montgomery, who arrived at Castres on June 21[1403] bearing the double commission of the two Protestant princes,[1404] in the course of four weeks found himself in the neighborhood of Toulouse and at the head of the united forces of the viscounts and some levies made in Albigeois. Montgomery’s energy amazed Montluc who was soldier enough to give his enemy credit for really wonderful achievement. He had never been in the country before and all the forces he had brought with him were three score and ten horses, and he had no other forces but those of the viscounts in the beginning. He had to cross the Garonne river, too, the entire length of which was watched by spies. The belief of the Catholic captains in Languedoc was that Montgomery intended to organize the defense of the places the Protestants were possessed of, and this erroneous opinion seems to have been given currency by the Huguenots themselves, “who had ever that quality to conceal their designs better than we,” testifies Montluc. “They are a people that rarely discover their counsels, and that is the reason why their enterprises seldom fail of taking effect.”