Brunanburh was one of the most important battles of the age and one of the most bloody. It is attested in sources from all over the British Isles and in a Norse Saga, but we do not know where the Battle of Brunanburh was fought. Alistair Campbell, in the leading study on the batle, concluded that it is impossible from the sources to locate the battle.
Possible locations suggested are:
On the Wirral. The name is etymologically the same as Brunanburh. No archaeology has been found to link it with the period though.
Discounted by most scholarship as too far south for the battle.
Bosworth and Toller suggests a site "about five miles south-west of Durham, or on the plain between the river Tyne and the Browney" but admits the location unknown.
The River Brun runs from the hills above the town.
The position of the Cuerdale Hoard, though not directly connected with Brunanburh, suggests that the Ribble was the beginning of a major overland route for trade and perhaps military ventures from Dublin to York. If Olaf's Dublin army took this path, up the Ribble to Cuerdale then overland in the valleys into the Pennines, they would have come into this very area. It is were a known path hemmed in by hills, it would be an ideal spot for an enemy to attack the column.
The Cuerdale Hoard was found here, buried at some time after 910. It includes axeheads and spearheads.