Rupert had previously demanded of the governor, Sir Thomas Glemham, whether he would defend the town, but Glemham replied that he must obey the Council, and Rupert therefore interfered no more in the matter. On May 18th a treaty was opened with Fairfax, but broken off on a disagreement about terms. But by June 1st, all the water had been drawn off from the city, and surrender was inevitable. The treaty was renewed, and Rupert prudently came to the Council to demand a particular clause for the safety of himself and his brother. This occasioned a quarrel with Lord Southampton, who retorted that "the Prince was in good company," and was understood by Rupert to imply disrespect to his person. He sent Gerard to expostulate with Southampton, who offered no apology, but, saying that his words had been unfaithfully reported, repeated them accurately. Rupert was not satisfied, and sent Gerard again, with a message that he expected to meet Southampton "with his sword in his hand," and at as early a date as possible, lest the duel should be prevented. The Earl cheerfully appointed the next morning, and selected pistols as his weapons, acknowledging that he was no match for the Prince with the sword. But fortunately the suspicion of the Council had been roused; the gates were shut, the would-be combatants arrested, and a reconciliation effected. "And the Prince ever after had a good respect for the Earl."[65] There was no surer way of winning Rupert's esteem than by accepting a challenge from him. After this episode, the special clause by which the Princes were to have the benefit of all the other articles, and free leave to quit the country, was inserted in the treaty, and accepted by Fairfax. Indeed the Parliament showed the Princes a greater leniency than might have been expected. They {203} were permitted to take with them all their servants, and to remain in England for six months longer, provided they did not approach within twenty miles of London. But on their quitting Oxford, June 22nd, Fairfax gave them leave on his own authority to go to Oatlands, which was within the proscribed distance of the capital. The reason for their move thither, was their desire to see the Elector, who was then in London; but it greatly excited the wrath of the Parliament. Notwithstanding the express permission of Fairfax, it was declared that the Princes had broken the articles, and they were ordered to leave the country immediately, on pain of being treated as prisoners. In a letter curiously signed "Rupert and Maurice," they answered, meekly enough, that they had acted in all good faith, believing the general's pass sufficient, and that in coming to Oatlands they had regarded the convenience of the house more than the distance from London, "of which we had no doubt at all."[66]