Carnasserie Castle a roofless ruin of the 16th-century is located about 1mile to the north of the Village of Kilmartin, in Argyll and Bute, Scotland. It was built in 1565 for John Carswell the then Bishop of the Isles, but on Carswell’s death in 1572 the castle passed to the Earl of Argyll, in 1643 it was sold to Sir Dugald Campbell, 3rd Baronet of Auchinbreck. The castle was extensively burned around 1690 and although the outer walls were undamaged the castle was never rebuilt, and subsequently fell into ruin when the Auchenbreck’s became bankrupt. The castle is now in the care of Historic Scotland and is open to the public.