Kind(er):
The following is copied from Stewart Baldwin's website: King's of theIsle of Man:
Note: Harald ("Aralt") is referred to as the grandson of Ivar in AI. CScalls him a son of the grandson of Ivar, i.e., of Sitric ("Aralt mac .h.Imair .i. mac Sitric, Rí gall Luimnigh, do marbad la Connachtoíbh"). Ifthe account of CS is literally true, and the "grandson" of AI just meansdescendant in general, then Harald would probably be a brother of OlafCuaran, as shown in the table. However, Ivar also had a son named Sitric(d. 896), so if the "mac .h." is a mistake for just ".h." (a commonabbreviation for the word "ua" ["grandson'] and its various declensions),then Harald may have been son of this earlier Sitric.
Note 1: The Harald who was father of Godred is not identified in theprimary sources, but the king of Limerick of that name seems like themost likely individual. In the list of the kings of Man, NHI (vol. 9, p.466) suggests that the Harald who was father of Godred might have beenHarald of Denmark (son of Gorm the Old), but this seems unlikely. Somewould include a certain "Magnus", also a son of Harald, as another kingduring this period, but it is likely that this is a mistake. Theexistence of a "Magnus" son of Harald is given only in late sources, andseems to be a error for "mac Arailt" in the earlier sources, in which"mac" became "Maccus" and then "Magnus" in successive corruptions of therecords. In further support of this, observe that the personal name"Magnus" is based on the Latin word magnus ("great"), and, if we are togive any credence to the account of Heimskringla, the name derives moredirectly from Charlemagne ("Carolus Magnus" in Latin), with king Magnus"the Good" of Norway being the first individual of that name. This wouldseem to exclude the possibility that a Viking bore that name as early asthe tenth century. While it is possible that "Maccus" is a corruption ofsome other Scandinavian name, it seems much more likley that the "macArailt" who appears in the annals was the son of Harald about whom wealready know, i.e., Goffraid mac Arailt.