 Upon Óláfr's return the chronicle says that Rögnvaldr welcomed him back and had him marry Lauon, the daughter of a certain nobleman from Kintyre, who was also the sister of his own wife. The precise identification of the father-in-law of Óláfr and Rögnvaldr is uncertain, but he may have been a member of Clann Somairle; possibly Ragnall mac Somairle, or his son Ruaidrí, who are both styled Lord of Kintyre in documents contemporaneous to their reigns. The chronicle states that Rögnvaldr then gave Lewis back to Óláfr, where the newly-weds proceeded to live until the arrival of Reginald, Bishop of the Isles (d. c. 1226), sometime later. According to the chronicle the bishop disapproved of Óláfr's marriage, as Óláfr had formerly had a concubine who was a cousin of Lauon. A synod was then assembled and the chronicle records that the marriage was nullified. Although at first glance the marriage appears to have been doomed, as it was deemed "as being within prohibited degree of kinship", it may be that this was merely a convenient excuse, and that the contention between the half-brothers may have played a part in its demise. It is also possible that Bishop Reginald may have released Óláfr from an arranged marriage which had been forced upon him; the bishop and Óláfr appear to have been close, as the chronicle describes Bishop Reginald as a son of Óláfr's sister, and notes that Óláfr was glad at his coming to Lewis. Furthermore, it was Bishop Reginald who annulled the marriage which Rögnvaldr had arranged for Óláfr. In fact, when the previous Bishop of the Isles died in 1217, Bishop Reginald had vied with a rival candidate for the position — a certain Nicholas — and there is evidence to suggest that Reginald was supported by Óláfr, while Óláfr's half-brother Rögnvaldr supported the bid of Nicholas.
