Thereafter the king sailed to the Humber, and up along the river, and then he landed. Up in Jorvik were two earls, Earl Morukare, and his brother, Earl Valthiof, and they had an immense army. While the army of the earls was coming down from the upper part of the country, King Harald lay in the Usa. King Harald now went on the land, and drew up his men. The one arm of this line stood at the outer edge of the river, the other turned up towards the land along a ditch; and there was also a morass, deep, broad, and full of water.
The earls let their army proceed slowly down along the river, with all their troops in line. The king's banner was next the river, where the line was thickest. It was thinnest at the ditch, where also the weakest of the men were. When the earls advanced downwards along the ditch, the arm of the Northmen's line which was at the ditch gave way; and the Englishmen followed, thinking the Northmen would fly. The banner of Earl Morukare advanced then bravely.