In May, 1815, a federative association, similar to that of Lyons, Grenoble, Paris, Avignon, and Montpelier, was desired by many persons at Nismes; but this federation terminated here after an ephemeral and illusory existence of fourteen days. In the meanwhile a large party of Catholic zealots were in arms at Beaucaire, and who soon pushed their patroles so near the walls of Nismes, "so as to alarm the inhabitants." These Catholics applied to the English off Marseilles for assistance, and obtained the grant of one thousand muskets, ten thousand cartouches, etc. General Gilly, however, was soon sent against these partizans, who prevented them from coming to extremes by granting them an armistice; and yet when Louis XVIII had returned to Paris, after the expiration of Napoleon's reign of a hundred days, and peace and party spirit seemed to have been subdued, even at Nismes, bands from Beaucaire joined Trestaillon in this city, to glut the vengeance they had so long premeditated. General Gilly had left the department several days: the troops of the line left behind had taken the white cockade, and waited further orders, whilst the new commissioners had only to proclaim the cessation of hostilities and the complete establishment of the king's authority. In vain, no commissioners appeared, no despatches arrived to calm and regulate the public mind; but towards evening the advanced guard of the banditti, to the amount of several hundreds, entered the city, undesired but unopposed.

As they marched without order or discipline, covered with clothes or rags of all colors, decorated with cockades, not white, but white and green, armed with muskets, sabers, forks, pistols and reaping hooks, intoxicated with wine, and stained with the blood of the Protestants whom they had murdered on their route, they presented a most hideous and appealling spectacle. In the open place in the front of the barracks, this banditti was joined by the city armed mob, headed by Jaques Dupont, commonly called Trestaillon. To save the effusion of blood, this garrison of about five hundred men consented to capitulate, and marched out sad and defenceless; but when about fifty had passed, the rabble commenced a tremendous fire on their confiding and unprotected victims; nearly all were killed or wounded, and but very few could re-enter the yard before the garrison gates were again closed. These were again forced in an instant, and all were massacred who could not climb over roofs, or leap into the adjoining gardens. In a word, death met them in every place and in every shape, and this Catholic massacre rivalled in cruelty and surpassed in treachery the crimes of the September assassins of Paris, and the Jacobinical butcheries of Lyons and Avignon. It was marked not only by the fervor of the Revolution but by the subtlety of the league, and will long remain a blot upon the history of the second restoration.