The canons did not shrink from laying the town under an interdict when the lawyers proved recalcitrant, and took every opportunity to enforce the recognition of their permanent right of choosing their prisoner at the season of the year consecrated to the exercise of their peculiar privilege. The same Bailly of Rouen who had objected to this in 1299, found, to his cost, that it was dangerous to repeat his attempts to thwart the ecclesiastics. For when their freedom of choice was again infringed only three years afterwards, the Chapter brought the sacred shrine to the chapel in the Place de la Vieille Tour, and, after explaining what had happened to the people, they left this venerated palladium of the town out in the open square until their privileges had been recognised. For the Thursday of Ascension Day, for the Friday and Saturday following, it remained there guarded by certain of the clergy and by many pious citizens. Each day it was solemnly visited by a procession from the Cathedral, accompanied by a sympathising crowd that daily grew larger and more vehement. By the Sunday morning the Baillage gave in, and the canons released the prisoner with a ceremony that was more than usually impressive after the opposition that had preceded it.
Such quarrels were the more probable just now, because the ecclesiastics were thus tenacious of their "privilège" just when the infant commune was beginning to feel its strength, when commerce was becoming regular, and even a town militia makes its appearance; for the "Compagnie de la Cinquantaine," sometimes called the Arbalétriers, were able to trace back their foundations to 1204, when an inquiry was held and their privileges confirmed more than five hundred and fifty years afterwards. The commune itself was also fully approved by Philip Augustus, who confirmed its possession of certain common lands in the suburbs which had been granted by Duke Richard. By the same date the "bourgeois" or sworn freemen were exercising the free choice of their twelve councillors and twelve aldermen, and sent up to the King from among them three candidates out of whom His Majesty selected the Mayor of Rouen; and this civic constitution lasted until 1320. It was revised by St. Louis, in 1255, and the same king reformed the civic expenditure by establishing the Chambre des Comptes which held its sittings in later centuries in the Renaissance building north-west of the Cathedral. In 1220 the commune obtained from the King for an annual rent of 40 livres, the house and land of the Earl of Leicester close to the Porte Massacre, and the Church of Notre Dame de la Ronde, and there they built the Belfry Tower and the Hôtel de Ville, which lasted until 1449 and is still represented by the buildings in the Rue de la Grosse Horloge above the famous archway near the Hôtel de Nord.