Carnasserie Castle is located just over a mile north of Kilmartin, in Argyll, Scotland.
This magnificent ruined castle, is the former home of the first Protestant Bishop of the Isles. The castle was built as a single structure between 1565 and 1572 by John Carswell, and apart from some changes to the windows in the south wall made in 1681, it remained virtually unaltered. The result is a remarkable example of the architecture of the day. Although sited on raised ground close to a strategic pass at the head of Kilmartin Glen, it was designed more for domestic use rather than military purposes.
The castle was blown up in 1685 by Royalist Forces during the Monmouth Rebellion and the castle fell into disuse.
Carnasserie castle has a 5-storey tower house, with a longer three storey hall house. In the basement are the remains of cellars and a kitchen with a large fireplace and water inlet. Above this is the large hall, connected to a large drawing room in the tower house, which retains its stone floor and large fireplace with finely carved stone decoration. Stairs rise from the entrance to the hall, contained in a small tower to the north-west. A second smaller stair leads up from the hall to the parapet walk on three sides of the tower house.
The exterior displays numerous double keyhole gunloops, as well as decorative string courses and corbelling.
John Carswell published the first ever book to be printed in Scottish Gaelic in 1567, a translation of John Knox’s book, the Book of Common Order.
He was Rector of Kilmartin, where he also had a castle (Kilmartin Castle), then Chancellor of the Chapel-Royal at Stirling. He was made Bishop of the Isles in 1566 by Mary, Queen of Scots and had a substantial income.