Aberffraw, 934 AD Aberffraw, 934 ADIdwal Foel stared at the Saxon messenger as if the envoy had lost his mind. “I have honoured the treaty I signed with King Aethelstan, fighting by his side against Owain of Strathclyde and asked for nothing in return. You say that your king wants us to march into the fastness of Alba because king Constantine has violated the treaty he has signed. What has that to do with Gwynedd, I ask? Tell me more about the proposed campaign.” Allowing himself time to calm down, Idwal listened carefully to the messenger’s exposition, which defined how Aethelstan proposed to conduct a joint land and sea campaign deep into Alba. The envoy stressed how Idwal’s cousin, Hywel, was eager to oblige his overlord and mobilise his men as they spoke. A crafty light shone in Idw

