in shielding the guilty. If, as we can readily believe was generally the case, these formidable difficulties could not be overcome, and the necessary number of witnesses were not ready to sacrifice themselves, then the accused could purge himself of the sins imputed to him by his own oath, supported by one, three, or six compurgators of his own order; and Hincmar himself bears testimony to the associations which were formed among the clergy to swear each other through all troubles.[318] Even simpler, indeed, was the process prescribed not long before by Pope Nicholas I., who ordered that when legal evidence was not procurable, the accused priest could clear himself on his own unsupported oath.[319] Under these regulations, Hincmar orders an annual investigation to be made throughout his province, but the results would appear to have been as unsatisfactory as might have been expected. In 874, at the Synod of Rheims, he complains that his orders have been neglected and despised, and he warns his clergy that proof of actual criminality will not be required, but that undue familiarity with women, if persisted in, will be sufficient for condemnation when properly proved.[320] In the presence of facilities for escape such as were afforded by the practice of ecclesiastical law as constructed by the decretalists, and as expounded by Hincmar himself, the threats in which he indulged could carry but little terror. We need not wonder, therefore, if we meet with but slender indications of priestly marriage during all this disorder, for there was evidently little danger of punishment for the unchaste priest who exercised ordinary discretion in his amours, while the penalties impending over those who should openly brave the canonical rules were heavy, and could hardly be avoided by any one who should dare to unite himself publicly to a woman in marriage. Every consideration of worldly prudence and passion therefore induced the priest to pursue a course of illicit licentiousness—and yet, as the century wore on, traces of entire neglect or utter contempt of the canons began to manifest themselves. How little the rule really was respected by the ecclesiastical authorities, when anything was to be gained by its suppression, is shown in the decision made by Nicholas I., the highest of high churchmen, when encouraging the Bulgarians to abandon the Greek church, although the separation between Rome and Constantinople was not, as yet, formal and complete. To their inquiry whether married priests should be ejected, he replied that though such ministers were objectionable, yet the mercy of God was to be imitated, who causes his sun to shine on good and evil alike, and as Christ did not dismiss Judas, so they were not to be dismissed. Besides, laymen were not to judge priests for any crime, nor to make any investigation into their lives, such inquiries being reserved for bishops.[321] As no bishops had yet been appointed by Rome, the answer was a skilfully