His great-grandson, the fifth Baronet, was raised to the Jacobite Peerage of Scotland as Lord Maclean on 17 December 1716.
In 1971 he was created a life peer as Baron Maclean, of Duart and Morvern in the County of Argyll, in the Peerage of the United Kingdom.
On his death in 1990 the life barony became extinct while he was succeeded in the baronetcy by his son, the twelfth and (as of 2010) present holder of the title.
The heir apparent is the present holder's son, Malcolm Lachlan Charles Maclean, Younger of Duart and Morven (born 1972).
The heir presumptive is the present holder's only brother, Alexander James Simon Aeneas Maclean (born 1949).