4) Francis Buchanan, of Arnpryor, Lenny House, Callander. Arrested before battle of Culloden for stockpiling weapons. Tried for high treason and executed at Carlisle 18 Oct 1746. Writing to Philip Webb on 9 Sep 1746, Lord Milton, the Lord Justice Clerk, said of Francis Buchanan that it would be of "more consequence to His Majesty’s Service … to get rid of such a person than to convict 99 of the lowest rank." For further details on whether Francis Buchanan of Arnprior was the chief of the clan, see the section below.