Domhnall mac Alasdair

Dòmhnall mac Alasdair (Anglicised: Donald, son of Alexander) was the eldest son of Alasdair Mòr Mac Dòmhnaill, the eponymous ancestor of Clan MacAlister.

Dòmhnall, like many other nobles at the time, swore fealty to King Edward I of England in 1291, with his father and son Alasdair. During the Wars of Scottish Independence, he was allied along with his cousin Aonghas Óg, in support of Robert de Brus in Robert's campaign for the Scottish throne.

After the death of his father Alasdair Mòr in 1299 in battle with Alasdair mac Dougall and Clan MacDougall, Dòmhnall succeeded his father. In 1307, he led a body of highlanders, to meet Robert de Brus in Arran.

Dòmhnall, together with Aonghas Óg, attended King Robert I of Scotland first session of parliament at St. Andrews in 1309 and witnessed a charter signed by Robert I.

It is not known whether Dòmhnall was part of Aonghas Óg's right flank at the Battle of Bannockburn in 1314 in support of Robert I.

He was succeeded by his son Alasdair. He is also said to be the father of Gilbert de Insula.

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