Viking Age by a Viking leader called Bagsecg and his five earls. Aided by the Great Heathen Army (which had already overrun much of England from its base in Jorvik), Bagsecg's forces, and Halfdan's forces (through an alliance), the combined Viking forces raided much of England until 871, when they planned an invasion of Wessex. On 8 January 871, Bagsecg was killed at the Battle of Ashdown along with his earls. As a result, many of the Vikings returned to northern England, where Jorvic had become the centre of the Viking kingdom, but Alfred of Wessex managed to keep them out of
Battle of Ringmere period the Danes wasted East Anglia, burning Thetford and Cambridge. Battle of Ringmere The Battle of Ringmere was fought on 5th May 1010. Norse sagas recorded a battle at "Hringmaraheior"; "Old English Hringmere-hūō", modern name Ringmere Heath. The sack of Thetford occurred in 1004. Sigvat records the victory of King Ethelred, allied with Saint Olaf, over the Danes under Sweyn Forkbeard during the latter's campaigns in England. The Battle site was located in lands under the control of Ulfcytel Snillingr, thegn of East Anglia, at a site once thought to be near Wretham, but now thought to be at Rymer