Battle of the Conwy In 877 they partitioned Mercia, taking the east for themselves and leaving the west to Ceolwulf. Gwynedd was also under attack from the Vikings, and in 877 King Rhodri Mawr was defeated and driven out. He returned the following year, but immediately came under attack from Mercia, which was still trying to maintain its hegemony in Wales. King Alfred's victory over the Vikings at the Battle of Edington in May 878 relieved the pressure on Mercia, and in the same year Mercia defeated and killed Rhodri Mawr. Ceolwulf died or was deposed in 879, and he was succeeded as Lord
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