Henry expected the invaders to land at Pevensey, but apparently, with the help of some part of the sailors who had been sent against him, Robert landed without opposition at Portsmouth, towards the end of July, 1101. Thence he advanced towards London, and Henry went to meet him. The two armies came together near Alton, but no battle was fought. In a conflict of diplomacy, Henry was pretty sure of victory, and to this he preferred to trust. A meeting of the brothers was arranged, and as a result Robert surrendered all the real advantages which he had crossed the channel to win, and received in place of them gains which might seem attractive to him, but which must have seemed to Henry, when taken all together, a cheap purchase of the crown. Robert gave up his claim to the throne and released Henry, as being a king, from the homage by which he had formerly been bound. Henry on his side promised his brother an annual payment of three thousand marks sterling, and gave up to him all that he possessed in Normandy, except the town of Domfront, which he had expressly promised not to abandon. It was also agreed, as formerly between Robert and William Rufus, that the survivor should inherit the dominions of the other if he died without heirs. A further provision concerned the adherents of each of the brothers during this strife. Possessions in England of barons of Normandy, which had been seized by Henry because of their fidelity to Robert, should be restored, and also the Norman estates of English barons seized by Robert, but each should be free to deal with the barons of his own land who had proved unfaithful. This stipulation would be of especial value to Henry, who had probably not found it prudent to deal with the traitors of his land before the decision of the contest; but some counter-intrigues in Normandy in favour of Henry were probably not unknown to Robert. Robert sent home at once a part of his army, but he himself remained in England long enough to witness in some cases the execution by his brother of the provision of the treaty concerning traitors. He took with him, on his return to Normandy, Orderic Vitalis says, William of Warenne and many others disinherited for his sake. Upon others the king took vengeance one at a time, on one pretext or another, and these included at least Robert of Lacy, Robert Malet, and Ivo of Grantmesnil. The possessions of Ivo in Leicestershire passed into the hands of the faithful Robert, Count of Meulan--faithful to Henry if not to the rebel who sought his help--and somewhat later became the foundation of the earldom of Leicester.