He was born in 1670. He became chief at the death of his father,
Sir Allan Maclean, 3rd Baronet, in 1674, when he was four years old.
Lauchlan Maclean, 2nd Laird of Brolas, and
Lachlan Maclean, 3rd Laird of Torloisk were assigned as his
legal guardians. In 1691
Castle Duart was under siege by
Archibald Campbell, 1st Duke of Argyll, and Maclean was forced to surrender it. He commanded the right wing of the Jacobite army at
Battle of Killiecrankie, and held out in
Cairnburgh Castle, which straddles
Cairn na Burgh Mòr and
Cairn na Burgh Beag. In 1692 he made his peace with
William III of England. He afterwards went to France and remained at the
Château de Saint-Germain-en-Laye until the
Act of Indemnity 1703, when he returned to Scotland. He joined
John Erskine, 6th Earl of Mar in the
Battle of Sheriffmuir, and after retired to
Gordon Castle where he died in March 1716. ==Marriage and children==