In consequence of this supposed poverty, the chronicle claims that Óláfr went to Rǫgnvaldr, who was also living in the Hebrides, and confronted him for more land. Rǫgnvaldr's stated response was to have Óláfr seized and sent to William I, King of Scotland, who kept him imprisoned for almost seven years. It is possible that, at this stage of his career, Óláfr acted as an under-king to Rǫgnvaldr, and sought to increase his share of power. There is reason to suspect that, following Óláfr's inability to make a deal with Rǫgnvaldr, Óláfr approached Ingi Bárðarson, King of Norway, and offered himself as a more palatable vassal-king in return for Norwegian support in deposing Rǫgnvaldr. In 1210, Rǫgnvaldr himself appears to have travelled to Norway, as evinced by a version of the thirteenth-century "Bǫglunga sǫgur", in a journey that could well have been an attempt to further cement his position in the Isles, and counter Óláfr's claims to the throne, by formally submitting to the Norwegian king. In any case, the chronicle states that William died during the seventh year of Óláfr's captivity, and that William had ordered the release of all his political prisoners before his passing. Since William died in December 1214, Óláfr's incarceration appears to have spanned between about 1207/1208 and 1214/1215. Upon his release, the chronicle reveals that the half-brothers met on Mann, after which Óláfr set off on a pilgrimage with his followers to Santiago de Compostela.