ARTHUR (1688-1746), 6th Lord Balmerino, joined the parti sans of James Edward, the Old Pretender, after the battle of Sheriffmuir in Nov. 1715, and then lived for some time in exile, returning to Scotland in 1733 when his father had secured for him a pardon. He was one of the first to join Charles Edward in 1745; he marched with the Jacobites to Derby, fought at Falkirk and was captured at Culloden. Tried for treason in Westminster Hall he was found guilty, and was beheaded Aug. 11, 1746, be having both at his trial and at his execution with great constancy and courage. On his death without issue the titles which he bore became extinct.