[Illustration: ARREST OF ARCHBISHOP GEOFFREY IN A MONASTERY AT DOVER. (_See p._ 239.)] The peculiar circumstances of this arrest, and the indignity thus inflicted upon a prelate of the Church, excited the popular feeling strongly against the government, and John, satisfied that he would be supported by the people, openly espoused the cause of his half-brother, and peremptorily ordered the chancellor to release him. Longchamp dared not resist the popular voice; he asserted that he had given no orders for the violence which had been used, and directed that the archbishop should be set at liberty, and suffered to go to London. An alliance, whose basis seems to have been self-interest rather than mutual esteem, was formed between the two half-brothers, and John, supported by the Archbishop of Rouen, who had been sent by Richard to England, boldly proceeded to London, summoned the great council of the barons of the kingdom, and called upon the chancellor to appear before it and defend his conduct. Longchamp not only refused to do so, but forbade the barons to assemble, declaring that the object of John was to usurp the crown. The council, however, was held at London Bridge, on the Thames, and the barons summoned Longchamp, who was then at Windsor Castle, to appear before them. The chancellor, on the contrary, collected all the men-at-arms who were with him, and marched from Windsor to London; but the adherents of John, who met him at the gates, attacked and defeated his escort; and finding himself also opposed by the citizens, he was compelled to take refuge in the Tower. [Illustration: SOUTH-WEST VIEW OF OLD ST. PAUL'S, SHOWING THE CHAPTER-HOUSE, ETC.]