Roughly about this point in time, correspondence between Joan, Queen of Scotland and her brother, Henry III, reveals that the Norwegian Crown was rumoured to have been planning a naval expedition west-over-sea. Although Joan's letter places this campaign in the context of a threat to English interests in Ireland, it may be more likely that Hákon's attention was focused upon the escalating situation in the Isles. One possibility is that the queen's correspondence is evidence that Óláfr had appealed to Hákon for supported against Rǫgnvaldr.