 It is suspected that members of Clann Somairle may have been attacking parts of the Crovan dynasty 's island @-@ kingdom , possibly taking advantage of the warring between Rögnvaldr and Óláfr . It may have been that they were also lending support to Alan 's destabilising incursions into the Isles . Whatever the case , it is clear that the state of affairs in the Isles was chaotic and , because of Óláfr 's inability to control of the situation , the formidable Hákon decided to pacify the region using Óspakr . In fact , the saga notes that Óspakr was also a son of Dubgall , and it is likely that his family connections would have made him a palatable over @-@ king of the unruly Clann Somairle . Óspakr 's kingdom was likely meant to encompass the territories of Clann Somairle , and control of the Crovan dynasty 's domain may have been retained by the dynasty . 
