From this vultures' nest the Ribauds devastated the neighbourhood and the Sieur des Eyzies on the opposite side of the river, and who was on the French side, was powerless against them. In company with the garrison of Bigaroque they surprised Temniac near Sarlat, S. Quentin and Campagnac, in 1348, but were shortly after dislodged by the Seneschal of Perigord from these acquisitions. In 1353 they surprised the church and fortress of Tursac and the castle of Palevez. The men of Sarlat hastened to recover Tursac, bringing with them some machines of war, named La Bride, Le Hop, Le Collard, and l'Asne, that flung stones and bolts and pots of flaming tar and sulphur. They managed to drive the English out of Tursac, but were unable to recover the other castle. In 1401, at the solicitation of the Baron of Limeuil, they took and utterly destroyed the town and castle of La Roche Christophe, as shall be related in full in the sequel. On 4th December 1409, the Constable of France having ruined Bigaroque, besieged the Rock of Tayac, and it was taken after a gallant defence on 10th January 1410, demolished and reduced to the condition in which we see it now. Then a tax was levied throughout Perigord to pay for the cost of the sieges of Bigaroque and the Rock of Tayac. We will now pass from Perigord to Quercy. Here the English Companies held the valley of the Lot from below Capdenac to the gates of Cahors, except the impregnable towns of Cajarc and Calvignac. Flowing into the Lot at Conduché is the river Célé that descends from Figeac. This river was also in the grip of the English. Below Figeac the limestone precipices first appear at Corn, and the cliff is full of caves in which there are remains of fortifications. The cliff is not beautiful, but is wondrous strange, white, draped with fallen folds of stalactite, black as ink, as though a tattered funeral pall had been cast over it. Corn was a feof of the family of Beduer, one of the five most powerful in Quercy. In 1379 Perducat, the Bastard of Albret, an English Captain, occupied Corn, but sold it to John, Count of Armagnac, Seneschal of Quercy; after having marched out and pocketed his money, he turned round, marched in again, and set to work to fortify the caves. He made the citizens of Cajarc contribute to the expense of this proceeding, and even required them to send masons to assist him in the work; but as they were loyal subjects of the French King they demurred at this, and he substituted additional money payment for personal service. He then pushed down the Célé valley to Cabrerets near where it debouches into the Lot, and in 1383 he fortified the caves of Espagnac, Brengues, Marcillac, Sauliac, and built the château du Diable at Cabrerets. The Count d'Armagnac sent troops to dislodge him, but failed.