This year, about Martinmas, King Edward had the northern fortress built at Hertford, betwixt the Memer, and the Benwic, and the Lea. After this, in the summer, betwixt gang-days and midsummer, went King Edward with some of his force into Essex, to Maldon; and encamped there the while that men built and fortified the town of Witham. And many of the people submitted to him, who were before under the power of the Danes. And some of his force, meanwhile, built the fortress at Hertford on the south side of the Lea. This year by the permission of God went Ethelfleda, lady of Mercia, with all the Mercians to Tamworth; and built the fort there in the fore-part of the summer; and before Lammas that at Stafford: in the next year that at Eddesbury, in the beginning of the summer; and the same year, late in the autumn, that at Warwick. Then in the following year was built, after mid-winter, that at Chirbury and that at Warburton; and the same year before mid-winter that at Runkorn.