Overview
Domhnall Mac Domhnaill (died 1318?), also known as Domhnall of Islay and Domhnall of the Isles, was a fourteenth-century Scottish nobleman. He appears to have been a member of Clann Domhnaill. First attested in the first decade of the fourteenth century, Domhnall appears to be last recorded in the second decade upon his death. Domhnall's attestations suggest that he was a claimant to the chiefship of Clann Domhnaill, and may have possessed the chiefship.
Uncertain parentage
Domhnall may have been a son of Aonghus Mór mac Domhnaill. As such he may have been a younger brother of Alasdair Óg, and an older brother of Aonghus Óg. Another possibility is that he was a cousin of Aonghus Mór's sons. As such, Domhnall could have been a son of Aonghus Mór's younger brother, Alasdair Mór. Alternately, it is also possible that Domhnall was a son of Alasdair Og or Aonghus Og.
No extant traditional genealogical source specifically accords Aonghus Mór and Alasdair Óg with a son named Domhnall. The fifteenth-century manuscript National Library of Scotland Advocates' 72.1.1 (MS 1467), on the other hand, accords Alasdair Mór a son with this name. Nevertheless, Domhnall appears to have had a brother named Gofraidh, and whilst Alasdair Óg is otherwise recorded to have had a son by this name, Alasdair Mór is not.
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