In January, 1106, Robert of Normandy himself came over, to get, if possible, the return of what he had lost at home; but he also could obtain nothing. All things were in Henry's hands. He could afford to refuse favours, to forget his engagements, and to encourage his servants in the invention of ingenious exactions. But Anselm was growing impatient. New appeals to action were constantly reaching him from England. The letter of the six bishops was sent toward the close of 1105. He himself began again to hint at extreme measures, and to write menacing letters to the king's ministers. Finally, early in 1106, the embassy was actually sent to Rome. Towards the end of March the Roman curia took action on the proposal, and Anselm was informed, in a letter from the pope, that the required concessions would be allowed. The pope was disposed to give thanks that God had inclined the king's heart to obedience; yet the proposal was approved of, not as an accepted principle, but rather as a temporary expedient, until the king should be converted by the preaching of the archbishop, to respect the rights of the Church in full. But Anselm did not yet return to England. Before the envoys came back from Rome, Henry had written to him of his expectation of early crossing into Normandy. On learning that the compromise would be accepted by the pope, Henry had sent to invite him at once to England, but Anselm was then too ill to travel, and he continued so for some time. It was nearly August before Henry's third expedition actually landed in Normandy, and on the 15th of that month the king and the archbishop met at the Abbey of Bee, and the full reconciliation between them took place. Anselm could now agree to the compromise. Henry promised to make reformation in the particulars of his recent treatment of the Church, of which the archbishop complained. Then Anselm crossed to Dover, and was received with great rejoicing. The campaign upon which Henry embarked in August ended by the close of September in a success greater than he could have anticipated. He first attacked the castle of Tinchebrai, belonging to William of Mortain, and left a fortified post there to hold it in check. As soon as the king had retired, William came to the relief of his castle, reprovisioned it, and shut up the king's men in their defences. Then Henry advanced in turn with his own forces and his allies, and began a regular siege of the castle. The next move was William's, and he summoned to his aid Duke Robert and Robert of Bellême, and all the friends they had left in Normandy. The whole of the opposing forces were thus face to face, and the fate of Normandy likely to be settled by a single conflict. Orderic, the historian of the war, notes that Henry preferred to fight rather than to withdraw, as commanded by his brother, being willing to enter upon this "more than civil war for the sake of future peace."