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 troops into the attack. After more heavy fighting, his side was also victorious. The West Saxons had a slight advantage in numbers (around 800 to 1,000 men), but the Danes held the high ground. The battle, little more than a great clash of shield walls, resulted in a victory for Alfred. The battle, however, was not decisive. This was a costly victory, for a great many lives were lost on each side and the Danes were subsequently able to win several battles after receiving reinforcements. Nevertheless, the hard fighting may have made the Danes more cautious in their raids into