The people became impatient, and began to shout, "Come out, come out to the ordeal!" Then Liprand "jumped down from the stone, containing the image of Hercules," and went forth accompanied by the multitude to the field where the pyre was made. There arose then a difficulty about the form of oath to be administered. Liprand, seeing that there was some hesitation, said, "Let me manage it, and see if I do not satisfy you all!" Whereupon he took hold of the hood of the Archbishop and shook it, and said in a loud voice, "That Grossulani, who is under this hood, he, and no other, has obtained the archbishopric of Milan simoniacally, by gift of hand, gift of tongue, and gift of service. And I, who enter on this ordeal, swear that I have used no charm, or incantation, or witchcraft."

The Archbishop, unwilling to remain, remounted his horse and rode to the Church of St. John "ad concham," but Ariald of Marignano remained to see that the ordeal was rightly carried out. When the pile was lighted, he said to the priest, "In heaven's name, return to your duty, and do not rush on certain death." But Liprand answered, "Get thee behind me, Satan," and signing himself, and blessing the fire with consecrated water, he rushed through the flames, barefooted, in sackcloth cassock and silk chasuble. He came out on the other side uninjured; a sudden draught had parted the flames as he entered, and when he emerged his feet were not burnt, nor was his silk chasuble scorched.

The people shouted at the miracle, and Grossulani was obliged to fly from the city.

It was soon rumoured, however, that Liprand was suffering from a scorched hand and an injured foot. It was in vain for his friends to assure the people that his hand had been burnt when he was throwing the holy water on the flames before he entered them, and that his foot was injured not by the fire, but by the hoof of a horse as he emerged from the flames. One part of the mob began to clamour against Liprand that he was an impostor, the other to exalt him as a saint, and the streets became the scene of riot and bloodshed. At this juncture Landulf of Vereglate, who had been just elected to the vacant see, arrived from Jerusalem, and finding that the Archbishop had fled the city, he appealed to the people to cease from their riots, and promised to have Grossulani deposed, or at least the charges brought against him properly investigated at Rome. The tumults were with difficulty allayed, and the Archbishop, Landulf, and Liprand went to Rome (A.D. 1103). A Synod was convened and Liprand brought his vague accusations of simony against the Archbishop. Landulf refused to support him, so that it is hardly probable that he can have felt himself aggrieved by the conduct of Grossulani. Liprand, being unable to substantiate his charge of simony, was obliged to change the nature of his accusation, and charged the Archbishop with having forced him to submit to the ordeal of fire. The Pope and the Synod required the Archbishop to clear himself by oath; accordingly Grossulani did so, in the following terms: "I, Grossulani, by the grace of God Archbishop, did not force Liprand to enter the fire." Azo, Bishop of Acqui, and Arderic, Bishop of Lodi, took the oath with him; at the same time the pastoral staff slipped from the hands of the Archbishop and fell on the floor, a sign, the biographer of Liprand says, that he forswore himself.[46]

The Archbishop withdrew his authority confirmed by the Holy See, and he returned to Milan, where he was well received.

The Archbishop took an unworthy opportunity, in 1110, of ridding the city of the presence of Liprand for that priest having taken into his house and cured a certain Herebert of Bruzano, an enemy of the Archbishop, who was ill with fever. Grossulani deprived Liprand of his benefice, and the priest retired into the Valteline. Troubles broke out in Milan between the two parties, which produced civil war, and the Archbishop was driven out of the city, whereupon Liprand returned to it. The friends of Grossulani persuaded him to visit Jerusalem, and he started, after having appointed Arderic, Bishop of Lodi, his vicar (A.D. 1111). During his absence both parties united to reject him, and they elected Jordano of Cliva in his room (Jan. 1, A.D. 1112). Mainnard, Archbishop of Turin, hastened to Rome, and received the pall from the Pope, on condition that it should not be worn for six months. But the rumours having spread that Grossulani was returning from Jerusalem, Mainnard came to Milan, and placed the pall on the altar of St. Ambrose, whence Jordano took it and laid it about his shoulders.

On the return of Grossulani, civil war broke out again between the two factions, which ended in both Archbishops being summoned to Rome in 1116; and the Pope ordered Grossulani to return to his bishopric of Savonia, and confirmed Jordano in the archbishopric of Milan. But before this Liprand had died 3rd January, 1113. His sanctity was almost immediately attested by a miracle, in spite of the disparagement of his virtues by the party of the Archbishop Grossulani; for a certain knight of Piacenza, having swallowed a fish-bone which stuck in his throat, in sleep saw the priest appear to him and touch his throat, whereupon a violent fit of coughing ensued, in which the bone was ejected; this was considered quite sufficient to establish the claim of Liprand to be regarded as a saint.