In the persecution of the Albigenses at the instigation of Pope Innocent III. the unfortunate heretics fled to the caves, but were hunted, or smoked out and massacred by the Papal emissaries. Nevertheless, a good many escaped, and in 1325, when John XXII. was reigning in Avignon, he ordered a fresh _battu_ of heretics. A great number fled to the cave of Lombrive near Ussat in Ariège. It consists of an immense hall, and runs to the length of nearly four miles. In 1328 the papal troops, to save themselves the trouble or risk of penetrating into these recesses after their prey, built up the entrance, and left from four to five hundred Albigenses along with their bishops to perish therein of starvation. Of late years the bones have been collected, removed, and buried. From 1152, the Bordelois, Saintonge, Agenois, Perigord, and the Limousin were nominally under the English crown. But the people did not bear their subjection with patience, and often rose in revolt, and their revolts were put down with ferocity. As to the Barons and Seigneurs of Guyenne, they took which side suited their momentary convenience, and shifted their allegiance as seemed most profitable to them. But the worst season was after the Treaty of Bretigny in 1360, when a vast part of France, from the Loire to the Pyrenees was made over to the English. The Hundred Years' War was the consequence, of which more shall be said in the fifth chapter. Froissart describes the condition of the country: "Matters were so woven together there and the lords and knights were so divided, that the strong trampled down the weak, and neither law nor reason was measured out to any man. Towns and castles were intermixed inextricably; some were English, others French, and they attacked one another and ransomed and pillaged one another incessantly." Under these circumstances it may well be understood that if Nature herself had not of her own accord furnished the miserable, harassed people with refuges, they would themselves have contrived some. As we shall see they did this, as well as make use of the natural provision supplied for their safety. Of refuges there are two kinds, those patiently and laboriously excavated under the surface of the soil, and those either natural or contrived high up in the face of inaccessible cliffs. Each shall be dealt with; they are different in character. The town of Saint Macaire on the Garonne is walled about. But the walls did not give to the citizens all the security they desired; the ramparts might be battered down, escaladed, or the gates burst open. Accordingly they excavated, beneath the town, a complete labyrinth of passages, chambers, halls, and store-rooms into which they might either retreat themselves or where they might secure their valuables in the event of the town being sacked.