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 Wessex, preferring easier targets. 'Æscesdūn' or Ashdown is generally thought to be an ancient name for the whole of the Berkshire Downs. It is not known exactly where the two armies met, though it was around a lone thorn tree. Thorn Down at Compton, near East Ilsley — meaning "Place of Conflict" — is therefore a popular contender. Modern investigation suggests a site on the Ridgeway between Aldworth and the Astons. Victorian theory states that Alfred’s men gathered at the valley-fort now called Alfred's Castle near Ashdown House at Ashbury. Ethelred’s troops had taken up position nearby, at Hardwell Camp,