The mother of Óláfr's children is uncertain. Although no source names the mother of his son, Haraldr, the chronicle asserts that the latter was only fourteen years old at the time of Óláfr's death. This would place Haraldr's birth in 1222 or 1223, at about the time that Óláfr married Cairistíona, which indicates that either Cairistíona or Lauon could have been Haraldr's mother. As for Haraldr's two succeeding brothers, it is conceivable that Cairistíona was their mother. If Lauon was indeed the mother of Haraldr and a descendant of Raghnall, this relationship could explain why Ruaidhrí and Domhnall—apparently close adherents of Óláfr's half-brother, Rǫgnvaldr—are not recorded to have opposed Óláfr after Rǫgnvaldr's death. Certainly, the recorded history of the Isles between the 1230s and 1240s is remarkably peaceful in comparison to other eras.