The third siege of London was in 1013, when Swegen returned. This time, mindful of his former failure, and of Thurkitel's failure, he left his ships at Southampton; he marched upon London by way of Winchester, which he took on the way; but although he came up from the south, he did not attack from the south, nor did he encamp on the south. The reason is obvious: the Causeway was narrow; to fight on the Bridge was to engage a mere handful of men; there was no place except that and the Causeway. Swegen, therefore, passed over the ford of Westminster, and attacked the walls on the north side. Within the City was Thurkitel, now in the English service; by his help or counsel, the Londoners drove Swegen off the field. He withdrew. But all England rapidly submitted to his arms; therefore London, too, seeing that it was useless to hold out alone, sent hostages and submitted. It is reported that they were terrified at the threats of Swegen: he would cut off their hands and their feet; he would tear out their eyes; he would burn and destroy--and so forth. But these promises were the common garnish of besiegers; they no more frightened the defenders of London at this time than they frightened the defenders of any other city. The end of Swegen, as everybody knows, was that St. Edmund of Bury killed him for doubting his saintliness. [Illustration: SKETCH MAP] We now come to the three successive sieges by King Cnut. The expedition with which he proposed to reduce London was far finer and more powerful than that of Olaf and Swegen. The poetic description of it says that the ships were counted by hundreds; that they were manned by an army among whom there was never a slave, or a freeman son of a slave, or one unworthy man, or an old man. Freeman asks what nobility meant if all were nobles? A strange question for one so learned! The nobles of Denmark were simply the conquering race; nobility consisted in free birth, and in descent from the conquering race, not the conquered: it was not necessarily a small caste; it might possibly include the larger part of the people. Cnut anchored off Greenwich and prepared for his siege. First of all, he resolved that the Bridge should no longer bar the way. He therefore cut a trench round the south of the Bridge, by means of which he drew some of his ships to the other side of it. He then cut another trench round the whole of the wall. In this way he hoped to shut in the City and cut off all supplies: if he could not take the place by storm, he would starve it out. There are no details of the siege, but as Cnut speedily abandoned the hope of success and marched off to look after Edmund, his investment of the City was certainly not a success.