Kingdom of Strathclyde
This revolving succession within the Alpínid dynasty reveals that the inter-dynastic struggle between Cuilén and Dub was continued by their respective brothers. As for Cuilén's other brother, Eochaid, this man's death with Cuilén seems to be evidence of his prominent position within the kingdom. The fact that Amlaíb reigned after his brother's death likewise appears to indicate that he too played an important part in Cuilén's regime. One of Cináed's first acts as king was evidently an invasion of the Kingdom of Strathclyde. This campaign could well have been a retaliatory response to Cuilén's killing, carried out in the context of crushing a British affront to Scottish authority. In any event, Cináed's invasion ended in defeat, a fact which coupled with Cuilén's killing reveals that the Kingdom of Strathclyde was indeed a power to be reckoned with.