This year came a great naval armament over hither south from the Lidwiccians; and two earls with it, Ohter and Rhoald. They went then west about, till they entered the mouth of the Severn; and plundered in North-Wales everywhere by the sea, where it then suited them; and took Camlac the bishop in Archenfield, and led him with them to their ships; whom King Edward afterwards released for forty pounds. After this went the army all up; and would proceed yet on plunder against Archenfield; but the men of Hertford met them, and of Glocester, and of the nighest towns; and fought with them, and put them to flight; and they slew the Earl Rhoald, and the brother of Ohter the other earl, and many of the army. And they drove them into a park; and beset them there without, until they gave them hostages, that they would depart from the realm of King Edward. And the king had contrived that a guard should be set against them on the south side of Severnmouth; west from Wales, eastward to the mouth of the Avon; so that they durst nowhere seek that land on that side. Nevertheless, they eluded them at night, by stealing up twice; at one time to the east of Watchet, and at another time at Porlock. There was a great slaughter each time; so that few of them came away, except those only who swam out to the ships. Then sat they outward on an island, called the Flat-holms; till they were very short of meat, and many men died of hunger, because they could not reach any meat. Thence went they to Dimmet, and then out to Ireland. This was in harvest. After this, in the same year, before Martinmas, went King Edward to Buckingham with his army, and sat there four weeks, during which he built the two forts on either side of the water, ere he departed thence. And Earl Thurkytel sought him for his lord; and all the captains, and almost all the first men that belonged to Bedford; and also many of those that belonged to Northampton. This year Ethelfleda, lady of the Mercians, with the help of God, before Laminas, conquered the town called Derby, with all that thereto belonged; and there were also slain four of her thanes, that were most dear to her, within the gates.