Parys Mountain, Ynys Dryyll, 854 AD
Parys Mountain, Ynys Dryyll, 854 ADAlun sent scouts to the north and east of the isle. It was essential to locate the Viking fleet as quickly as possible to send precise details to Rhodri in Aberffraw. The Baron of Gonwy did not know that the king was a step ahead of him and already marching his men northwards, having been informed of the fleet sighting by his spies.
Striking a compromise between the two likeliest directions to intercept the Norsemen, Alun marched slowly north-eastwards. The choice to move at a reduced pace was rationally based on the danger of meeting two thousand foes with a force of six hundred warriors. Only careful use of the terrain and the arrival of reinforcements would provide the Welsh leader with a fighting chance to overcom
