sentences:  Although this record could refer to a member of Clann Ruaidhrí—perhaps Raghnall Mac Ruaidhrí—another possibility is that the individual actually refers to a member of Clann Domhnaill—perhaps a son of either Alasdair Óg or Aonghus Óg.If Ruaidhrí of Islay was indeed a member of Clann Domhnaill, and a son of Alasdair Óg, his expulsion may have marked the downfall of Alasdair Óg's descendants—Clann Alasdair—and may account for the fact that this branch of Clann Domhnaill failed to hold power in Hebrides after this date.As such, Ruaidhrí of Islay's expulsion could well mark the date upon which Clann Alasdair relocated overseas.