the monasteries, was to let blood at stated intervals, in the hope of reducing the system and thus mitigating the effects of prolonged continence—a device prohibited by Louis-le-Débonnaire, but long subsequently maintained as part of monastic discipline.[312] As regards the secular clergy, even darker horrors are asserted by Theodulf, Bishop of Orleans, and other prelates, who forbade to their clergy the residence of mother, aunt, and sister, in consequence of the crimes so frequently perpetrated with them at the instigation of the devil;[313] and the truth of this hideous fact is unfortunately confirmed by the declarations of councils held at various periods.[314] If, under the external polish of Carlovingian civilization, such utter demoralization existed, while the laws were enforced by the stern vigor of Charlemagne, or the sensitive piety of Louis-le-Débonnaire, it is easy to understand what was the condition of society when the sons of the latter involved the whole empire in a ceaseless tumult of civil war. Not only was the watchful care of the first two emperors withdrawn, but the state was turned against itself, and rapine and desolation became almost universal. The royal power was parcelled out, by the rising feudal system, among a crowd of nobles whose energies were solely directed to consolidating their position, and was chiefly employed, as far as it affected the church, in granting abbeys and other ecclesiastical dignities to worthless laymen, whose support could only be secured by bribes which the royal fisc could no longer supply. Pagan Danes and infidel Saracens were ravaging the fairest provinces of the empire, and their blows fell with peculiar weight on the representatives of a hated religion. For seventy years previous to the treaty of Clair-sur-Epte no mass resounded in the walls of the cathedral church of Coutances, so fierce and unremitting had been the incursions of the Northmen. It is therefore no wonder that, as early as 845, the bishops assembled at the council of Vernon confess that their ecclesiastical authority is no longer sufficient to prevent the marriage of monks and nuns and to suppress the crowds who escaped from their convents and wandered over the country in licentiousness and vagabondage. To restrain these disorders they are obliged to invoke the royal power to cast into prison these reprobates and force them to undergo canonical penance.[315]