But in this dire hour Henry found a more powerful supporter in Anselm. As treason thickened around the king, he placed his trust in almost no one except the archbishop.[55] Their quarrel over investitures was no longer allowed to stand between them. Eadmer affirms that Henry gave up his whole contention in that matter, and promised henceforth to obey the decrees and commands of the apostolic see.[56] And with such assurances Anselm threw himself heart and soul into the royal cause. Privately he undertook to inspire the disloyal barons whom the king brought before him with a holy fear of violating their plighted faith.[57] But he went further. Mounting a pulpit in the midst of the host, he harangued the forces upon their obligation to abide by their sworn allegiance. His voice was like the blast of a trumpet calling the multitude to arms. Raising their voices, they pledged their goods and their loyalty to the king, upon condition that he put away the evil customs which had come in with William Rufus and that he keep good laws.[58]

Thus the church and the English people stood firmly behind the king,[59] and many of the barons who at first had contemplated desertion seem to have been held back by the strong personal influence of the archbishop. And, with such support, Henry moved forward to intercept the invaders,[60] and came face to face with them at Alton.[61] Yet no battle ensued:

Dote li reis, dote li dus,

Mais io ne sai qui dota plus.[62]

In this happy couplet Wace has described the situation exactly. In spite of a very fortunate beginning, resolution failed the duke and his supporters when it came to pressing their advantage home.[63] The king, too, notwithstanding the disaffection among his barons, had been able to muster a formidable army. Probably the desertions from the royal cause had been less numerous than Robert and his supporters had anticipated.[64] The battle, if joined, would certainly be a bloody one. And, on his side, the king was in no position to force the issue: the loyalty of a considerable portion of his army was too doubtful. Moreover, it was no part of Henry’s character to seek by arms what he could achieve by diplomacy, a sphere in which he enjoyed a far greater superiority. The chief supporters of both sides also hesitated. A fratricidal war was as little attractive to the barons, whose families were divided between the two opposing forces, as it was to the two brothers who were the principals in the contest.[65] And so saner counsels prevailed, and leading barons from each side opened negotiations for peace.[66]

The text of the treaty which resulted has not come down to us in documentary form, but it is possible to reconstruct its terms with some fulness from the narrative sources. Robert gave up all claim to the English crown, released Henry from the homage which he had done him on an earlier occasion—probably upon the receipt of the Cotentin in 1088—and recognized his royal title and dignity.[67] It was not considered fitting that an English king should remain the vassal of a Norman duke. On his side, the king undertook to pay Robert an annual subsidy of 3000 marks of silver[68] and to surrender all his holdings in Normandy except the great stronghold of Domfront.[69] Long years before, when Henry had been a wandering exile, his fortunes at their lowest, the men of Domfront had voluntarily called him in and made him their lord; and on taking possession of their town and castle he had solemnly sworn never to abandon them. The binding force of this oath was now invoked as a pretext for the king’s retention of a solitary outpost in Robert’s dominions. An amnesty provision was added for the benefit of the barons with holdings on both sides of the Channel who by supporting one of the brothers had jeopardized their interests with the other. Robert undertook to restore all Norman honors which he had taken from the king’s supporters;[70] and Henry promised the restoration of all English lands which he had seized from partisans of the duke.[71] A special clause, of which we would gladly know the full significance, provided that Count Eustace of Boulogne should have “his paternal lands in England.”[72] Further, it was agreed that, if either of the brothers should die before the other and leave no lawful heir, the survivor should succeed to his dominions whether in England or in Normandy.[73]

So far the provisions of the treaty seem reasonably certain. The remainder are more doubtful. Ordericus Vitalis asserts—and his whole defence of Henry’s dealings with Robert down to the latter’s overthrow at Tinchebray, and after, is founded upon the assertion—that Robert and Henry entered into a sworn agreement to recover all of the Conqueror’s domains which had been lost since his death and to visit condign punishment upon the wicked men who had fomented discord between them.[74] Wace adds that each undertook, in case the other should be at war, to furnish him with one hundred knights so long as the war lasted.[75] According to the Annals of Winchester, Ranulf Flambard gave up his bishopric of Durham.[76]

The treaty, as finally agreed upon, was duly confirmed in accordance with a custom of the period by the oaths of twelve great barons on each side.[77]

Thus ended Robert’s last and greatest effort to gain the English throne. The royal army was disbanded and sent home. A part of the ducal forces were sent back to Normandy.[78] But with the rest, Robert remained in England for several months upon terms of peace and friendship with his brother.[79] May he possibly have been awaiting the first instalment of the English subsidy? The Chronicler does not fail to raise a characteristic lament, though he makes no reference to oppressive gelds: “and his men incessantly did much harm as they went, the while that the count continued here in the country.” About Michaelmas Duke Robert returned to Normandy.[80]