Next day, the 25th January, 1077, Henry came again in the same penitential dress, but this time according to formal appointment. He came into the room where the Pope awaited him, followed by all the excommunicated princes in his train, barefooted and half frozen with the painful climb up the rocky paths; and throwing himself on the floor before Gregory, asked his pardon, which Gregory gave, shedding many tears over the penitents. They were then received back into the Church with all the due ceremonials, the Pope in his vestments, the penitents naked to the waist, despoiled of all ornaments and dignities. In the castle church, of which now nothing but the foundations remain, Gregory solemnly absolved the miserable party, and offered them the Communion. At this act a very strange scene took place. The Pope, the great assailant of Simony, had himself been accused of it, ridiculous as was the accusation in a case like his, of which every circumstance was so perfectly known, and formally by Henry himself in the insolent command already quoted to abandon the papal see. At the moment of communion, in the most solemn part of the service, the Pope turned to Henry, standing before the altar, with the host in his hands. He appealed to God in the most impressive manner according to the usage of the time.

"You have long and often accused me," said the Pope, "of having usurped the Apostolical chair by Simony.... I now hold the body of the Saviour in my hands, which I am about to take. Let Him be the witness of my innocence: let God Himself all powerful absolve me to-day of the crime imputed to me if I am innocent, or strike me with sudden death if I am guilty." Then after a solemn pause he added: "My son, do as I have done: if you are certain of your innocence, if your reputation is falsely attacked by the lies of your rivals, deliver the Church of God from a scandal and yourself from suspicion; take the body of Our Lord, that your innocence may have God for witness, that the mouth of your enemies may be stopped, and that I—henceforward, your advocate and the most faithful defender of your cause—may reconcile you with your nobles, give you back your kingdom, and that the tempest of civil war which has so long afflicted the State may henceforth be laid at rest."

Would a guilty king in these unbelieving days venture upon such a pledge? Henry at least was incapable of it. He dared not call God to witness against the truth, and refused, trembling, murmuring confused excuses to take this supreme test. The mass was accomplished without the communion of the king; but not the less he was absolved and the anathema taken from his head.

In a letter written immediately after, Gregory informed the German princes of what he had done, adding that he still desired to cross the Alps and assist them in the settlement of the great question remaining, Henry having been avowedly received by him as a penitent, but not in any way as a restored king.

This great historical event, which has been the subject of so much commentary and discussion, and has been supposed to mark so great a step in the power and pretensions of the Popes, was in fact without any immediate effect in history. Henry went forth wroth and sore, humiliated but not humbled, and thinking of nothing so much as how to return to Gregory the shame he had himself suffered. And Gregory remained in his stronghold as little convinced of any advantage attained, as he had been of Henry's repentance. He is said to have answered the Saxon envoys who reproached him with his leniency, by a grim reassurance which is almost cynical. "He goes back worse than he came," said the Pope. It was indeed impossible that the eye of a man so conversant with men as Gregory should not have perceived how entirely his penitent's action was diplomatic and assumed for a purpose, and what a solemn farce Henry was playing as he stood barefooted in the snow, to obtain the absolution which was his only chance for Germany. It is perfectly permissible to believe that not only the determination not "to turn back his sword from the blood" or to fail in exacting every punctilio of penance, but a natural impulse of scorn for the histrionic exhibition made for the benefit of the great audience across the Alps, induced the Pope to keep the king dangling at those icy gates. That there should have been in Gregory's mind, along with this conviction, momentary relentings of hope that the penitent's heart might really be touched, was equally natural, and that it was one of these sudden impulses which moved him to the startling and solemn appeal to God over the sacramental host which formed so remarkable an incident in the ceremonial, may be taken for granted. In that age miracles were more than common, they were looked for and expected; and in all ages the miracle which we call conversion, the sudden and inexplainable movement of a heart, touched and turned in an instant from evil to good, has been known and proved. That a priest at the altar should hope that it might be his, by some burning word or act, to convey that inexpressible touch was a very human and natural hope: and yet Gregory knew well in his after survey of what had passed that the false penitent went away worse than he came. He wrote, however, an account of the matter to the German princes, who looked on trembling for the consequences, and probably blaming the Pope for an action that might destroy all their combinations—in which he described to them Henry's penitence and promise, without implying a doubt of the sincerity of either, but with a full statement of the fact that the absolution awarded to the man made no difference in respect to the king.

"Things being thus arranged [writes the Pope] in order to secure, by the help of God, the peace of the Church and the union of the Kingdom, which we have so long desired, we are anxious to pursue our journey into your countries on the first occasion possible; for we desire you to know, as you may perceive from the written engagements, that everything is still in suspense, so that our arrival among you and the unanimity of your council is absolutely necessary to settle matters. Therefore be very attentive to continue as you have begun in faith and the love of justice, and understand that we have done nothing for the king, except to tell him that he might trust to us to help him in such things as may touch his salvation and his honour, with justice and with mercy, without putting our soul and his in peril."

In the meantime Henry had enough to do in winning back again to his side the rebellious Lombards, who considered his submission to the Pope, however artificial, a desertion of their cause, and shut upon him the gates of their cities, which before his visit to Canossa had been thrown wide open. He had apparently, though only for a moment, lost them, while he had not regained the sympathies of Germany. There was nothing for it but a new apostasy, throwing over of his promises, and reassumption of the leadership of the schismatic party, which made the position of Gregory, surrounded by that angry sea of Lombard rebellion which beat against the base of his rocky stronghold, a very dangerous one. Through the whole spring of 1077 the Pope was more or less confined to the Castle of Canossa or other similar fortresses, under the vigilant care of Matilda; and it was from these strong places that he wrote a succession of remarkable letters to the nobles of Germany, who, strongly set upon the Diet in which the affairs of the kingdom were to be placed on a permanent footing, were proceeding to carry out their intention without waiting either for the presence of Gregory which they had invited, or Henry whose interests were at stake. Gregory did everything that was possible to delay the Diet until he could be present at it. He was anxious also to delay whatever great step might be in contemplation until the mind of the country was a little less anxious and disturbed: and he desired to be present, not only in the position of Arbitrator, but also to moderate with his counsels the excited spirits, and prevent if possible any great catastrophe.

We may allow, as it is one of the conventionalities of history to assert, that Gregory's intention was to establish in such matters the jurisdiction of the Popes and make it apparent to the world that thrones and principalities were at the disposition of the Church. But at the same time Gregory was, like all men, chiefly moved by the immediate question before him, and he was a man sincerely occupied with what was best for both Church and State, fearing the rashness of an angry and excited assembly, and remembering his promise to do what he could for his most unworthy penitent; and we see no reason to believe that his purposes were not, according to his perception of his duty, honest and noble. He retained his hope of proceeding to Germany as long as that was possible, asking again and again for the guide and escort promised, even asking from Henry a safe conduct through the territory now held by him. Even after the election at Forchheim of Rudolf of Suabia as king in the place of Henry, he continued to urge upon the legates whom he had sent to that assembly the necessity for his presence. And he undoubtedly did this on the highest ground possible, putting forth his right to judge in the matter in the very clearest words. He bids his messengers in the name of St. Peter to summon the heads of both parties, Henry and Rudolf, to make his journey possible.

"With the advice of the clergy and laymen fearing God, we desire to judge between the two kings, by the grace of God, and point out which of the two parties is most justly to be entrusted with the government of the State. You are aware that it is our duty, and that it appertains to the providential wisdom of the Apostolic See, to judge the governments of the great Christian kingdoms and to regulate them under the inspiration of justice. The question between these two princes is so grave, and the consequences may be so dangerous, that if it was for any reason neglected by us, it would bring not only upon us and upon them, but on the Church entire, great and lamentable misfortune. Therefore, if one or other of these kings refuses to yield to our decision and conform to our counsels, and if, lighting the torch of pride and human covetousness against the honour of God, he aspires in his fury to the desolation of the Roman Empire, resist him in every way, by every means, to the death if necessary, in our name and by the authority of the blessed Peter."

The Pope in another letter makes his appeal no longer to the ruling class but to the entire people. He informs "all the faithful of Christ in the Teutonic empire" that he has sent his legates to both kings to demand of them both "either in their own persons or by sufficient messengers" to open the way for his journey to Germany in order with the help of God to judge the question between them.