King of France in 1258. The bishop had great power as a vassal, but he didn't have the total legitimacy of some Royal officials. This situation ended from 1307 with the Act of paréage between Bishop Guillaume VI Durand and King Philip IV. Indeed, it definitively fixed the possessions of the king and those of the bishop, even if some disputes persisted. During the Hundred Years' War security increased with the strengthening of the fortifications and the construction of ditches to 1361-1362. At that time, the chapter of Mende had a castle on the heights of the city, Chastel-Nouvel. In 1370 many locals felt safe from the ramparts of the city, despite threats from the routiers. Also, few of them took refuge in Chastel-Nouvel. But the walls were insufficient, and could not prevent the pillages. This period isolated Mende from its neighbours, including Le Puy-en-Velay, and waited the arrival of the Constable of France, Bertrand du Guesclin, then the intervention of Charles VI and the liberation of the region so that the roads reopened around 1452. In 1390, was in Mende, where John III of Armagnac sought, on behalf of the King of France, to put an end to the private war that Raymond de Turenne led against the Pope from Avignon. The Gascon signed as a witness to an agreement between the legate of Clement VII, Antoine de Lisa, , and a representative of the Viscount of Turenne. This interview of Mende helped the Florentines to send ambassadors to solicit the Count of Armagnac. He was proposed to cross the Alps and attack the Count of Vertus in Lombardy. It was also at this time that Pope Urban V began the work of the cathedral (1368), for a completion in 1467. By its letters patent, King Louis XI confirmed the privileges for this cathedral, granted by his predecessors, in September 1464. At the beginning of the 1470s, conflict erupted between Bishop and King Louis XI, because of the support that the bishop had given to the County of Armagnac when it had revolted. To counter it, the king subtracted La Panouse authority over the city which then became autonomous. It wasn't until 1478 that the bishops found authority over the city, sharing revenues with the consul. At the end of the Hundred Years' War, Mende developed its production of drapery, and thus increased its role as a commercial crossroads