it was perhaps following the norse withdrawal to kintyre that óspakr succumbed to wounds suffered on bute, whereupon command was assumed by amlaíb dub. the latter then used the fleet to serve his own needs, diverting it to mann, where he used it to reinstate himself on the island. there the norwegians overwintered before returning for home in 1231, and following the death of ragnall's illegitimate son gofraid donn, king of the isles the same year, amlaíb dub regained complete control of the island kingdom. the events of 1230–1231 marked a dramatic end of alan's ambitions in the isles. even though it had not been his intention, alan's prolonged campaigning against amlaíb dub had caused a grave international crisis. in fact, the norse had not been intent on solely restoring order in the isles, but had directed their retaliatory campaign squarely at scottish-held territories, thereby endangering the recent westward advances of the scottish crown. although alan's unexpected appearance in force off kintyre had overawed the norse, the scots had only narrowly averted full-scale war, and as a result, alan almost certainly incurred alexander's subsequent displeasure.