Battle of Arfderydd

The Battle of Arfderydd (also known as Arderydd) was fought in medieval Britain in AD 573, according to the Annales Cambriae. The opposing armies are identified in a number of Old Welsh sources but vary between them, perhaps suggesting several allied armies were involved.

The Battle of Arfderydd was fought in AD 573 in Cumberland between the forces of Gwenddolau of the Cynfyldynd and the army of Myrddin (Merlin), according to Welsh annals and hagiographic sources. The battle resulted in Gwenddolau's death and Myrddin's retreat, and it is notable for being one of the earliest recorded engagements associated with the legendary figure Merlin.