 In 1230 Óláfr fled to Norway to seek military assistance against Alan and members of Clann Somairle . The Norwegian king 's response was to send a fleet into the Isles under the command of Óspakr Ögmundsson , a member of Clann Somairle . Óspakr was slain early in the campaign , after which Óláfr took control of the fleet and secured himself on Mann . The island @-@ kingdom was divided between him and his mutilated nephew Guðrøðr , with the latter ruling the Hebridean portion and Óláfr ruling Mann itself . Guðrøðr was soon after killed on Lewis , and Óláfr ruled the whole Kingdom of Mann and the Isles peacefully , until his death in 1237 . Óláfr 's restoration on Mann was seen as a success by the Norwegians , and likely favourably viewed by the Scots as well ; since the internal struggle between him and his rivals had been brought to an end . Óláfr was succeeded by his son , Haraldr . In all , three of Óláfr 's sons ruled the Crovan dynasty 's island @-@ kingdom — the last of which , Magnus Olafsson , was also the last of the dynasty to rule . 
