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 Ashdown the priest had finished. The young Prince had to make a decision whether to wait for his brother or commence the fight alone. The troops were on edge and impatient. The Danes had already deployed in an advantageous position, on the higher ground and to let them take the initiative would be to court disaster. Despite his brother’s absence, Alfred gave the command for his own men to charge. Ashdown was one of the few victories that Wessex had seen against the Danes, and it would be their only victory in the battles of that year. In terms of strategic