"Soon after this, three of the sons of Sweyne came from Denmark with 240 ships, together with earl Osbern and earl Thorkill, into the Humber, where they were met by child Edgar and earl Waltheof, and Merle-Sweyne, and earl Cospatric with the men of Northumberland and all the landsmen riding and marching joyfully with an immense army; and so they went to York, demolished the castle, and found there large treasures. They also slew many hundred Frenchmen, and carried off many prisoners to their ships; but, before the shipmen came thither, the Frenchmen had burned the city, and plundered and burnt St. Peter's minister. When the King heard of this, he went northward with all the troops he could collect, and laid waste all the shire; whilst the fleet lay all the winter in the Humber, where the King could not get at them. The King was at York on Midwinter's day, remaining on land all the winter, and at Easter he came to Winchester." It was on the 19th of September that the Danes and Northumbrians entered York, and, amid the flame and smoke of burning houses, stormed the Norman stronghold, and put the garrison to the sword. Egbert, the seventh Archbishop of York, had founded a valuable library in the city, but it was utterly consumed in the flames. The triumph of King William was not so easily achieved as might be supposed from the account given in the "Anglo-Saxon Chronicle;" and had he not succeeded in buying off the Danish fleet, it is quite possible that all the fruit of his great victory at Senlac might have been swallowed up at York. Although the Northumbrians were not strong enough to brave the Normans in open field, they defended York against all the attacks of the King's troops for a period of six months, and the garrison only surrendered when they were in danger of perishing from starvation. During the siege Waltheof Siwardsson especially distinguished himself, and on one occasion defended, single-handed, a breach in the city-wall, dashing out the brains of the Normans as they came within the sweep of his axe.