The conflict followed decades of hostility between the Welsh Kingdoms of Brycheiniog, Gwent and Powys by Æthelbald of Mercia and Coenred of Wessex, and involved the armies of Mercia and the Welsh.
[1] The Welsh were said to have defeated the Mercian army, and freed themselves from the influence of the Anglo-Saxons.
[2] Which Welsh kingdom led the offensive is uncertain.
Both King Nowy Hen of Brycheiniog and Eliseg of Powys have been put forward as candidates.
This article about a battle in English history, before 1707, is a stub.