In 1074 Gregory VII. in solemn conclave will bless them altogether, by name, as the champions of the Holy See, and of the Truth; in 1179 Alexander III. will anathematise them altogether, as heretics meet to be burned. Frederick II., when seeking reconciliation with Honorius III. and Gregory IX., will be never weary of offering hecatombs of Patarines, in token of his orthodoxy.

Ariald, a native of Cuzago, a village near Milan, of ignoble birth, in deacon's orders, was chosen for the dangerous expedient of enlisting the Patarine heretics against the orthodox but relaxed clergy of that city. Milan, said a proverb, was famous for its clergy; Ravenna for its churches. In morals, in learning, in exact observance of their religious duties, the clergy of Milan were prominent among the priests of Lombardy. But they were all married. The Popes could expect no support from the Archbishop, Guido Vavasour; none from the Emperor Henry IV., then a child. Ariald was a woman-hater from infancy, deeply tinged with Patarinism. We are told that even as a little boy the sight of his sisters was odious to him.[14] He began to preach in Milan in 1057, and the populace was at once set on fire[15] by his sermons. They applauded vociferously his declaration that the married clergy were no longer to be treated as priests, but as "the enemies of God, and the deceivers of souls."

Then up rose from among the mob a clerk named Landulf, a man of loud voice and vehement gesture, and offered to join Ariald in his crusade. The crowd, or, at least, a part of it, enthusiastically cheered; another part of the audience, disapproving, deeming it an explosion of long-suppressed Manicheism, which would meet with stern repression, thought it prudent to withdraw.

A layman of fortune, named Nazarius, offered his substance to advance the cause, and his house as a harbour for its apostles.

The sermon was followed by a tumult. The whole city was in an uproar, and the married clergy were threatened or maltreated by the mob. Guido Vavasour de Velati, the Archbishop, was obliged to interfere. He summoned Ariald and Landulf before him, and remonstrated. "It is unseemly for a priest to denounce priests. It is impolitic for him to stir up tumult against his brethren. Let not brothers condemn brothers, for whose salvation Christ died." Then turning to Landulf, "Why do not you return to your own wife and children whom you have deserted, and live with them as heretofore, and set an example of peace and order? Cast the beam out of thine own eye, before thou pluckest motes out of the eyes of thy brethren. If they have done wrong, reprove them privately, but do not storm against them before all the people." He concluded by affirming the lawfulness of priests marrying, and insisted on the cessation of the contest.[16] Ariald obstinately refused to desist. "Private expostulation is in vain. As for obstinate disorders you apply fire and steel, so for this abuse we must have recourse to desperate remedies."

He left the Archbishop to renew his appeals to the people. But dreading lest Guido should use force to restrain him, Ariald invoked the support of Anselm de Badagio, Bishop of Lucca, and received promise of his countenance and advocacy at Rome.

Guido Vavasour had succeeded the married Archbishop Heribert in 1040. His election had not satisfied the people, who had chosen, and proposed for consecration, four priests, one of whom the nobles were expected to select. But the nobles rejected the popular candidates, and set up in their place Guido Vavasour, and his nomination was ratified by the Emperor and by the Pope. He was afterwards, as we shall see, charged with having bribed Henry III. to give him the See, but was acquitted of the charge, which was denounced as unfounded by Leo IX. in 1059. The people, in token of their resentment, refused to be present at the first mass he sang. "He is a country bumpkin," said they. "Faugh! he smells of the cow-house."[17] Consequently there was simmering discontent against the Archbishop for Ariald to work upon; he could unite the lower people, whose wishes had been disregarded by the nobles, with the Patarines, who had been haled before ecclesiastical courts for their heresy, in one common insurrection against the clergy and the pontiff.

According to Landulf the elder, a strong partisan of the Archbishop, another element of discontent was united to those above enumerated. The clergy of Milan had oppressed the country people. The Church had estates outside of Milan, vine and olive yards and corn-fields. The clergy had been harsh in exacting feudal rights and legal dues.

Ariald, as a native of a country village, knew the temper of the peasants, and their readiness to resent these extortions. Ariald worked upon the country-folk; Landulf, rich and noble, and eloquent in speech, on the town rabble; and the two mobs united against the common enemy.

Anselm de Badagio, priest and popular preacher at Milan, had been mixed up with Landulf and Ariald in the controversy relative to clerical marriage; but to stop his mouth the Archbishop had given him the bishopric of Lucca, in 1057, and had supplied his place as preacher at Milan by seven deacons. Landulf the elder relates that these deacons preached with such success that Anselm, in a fit of jealousy, returned to Milan to listen to their sermons, and scornfully exclaimed, "They may become preachers, but they must first put away their wives."