What is recorded here

Suibhne the Red built Castle Sween in the 1140s to guard his galleys inside Knapdale's sea lochs. The stone wall still stands where his ships once beached, but Alaisdair MacColla broke the place open in 1647 and nobody bothered to close the wound. Every family that took the castle after him merely renamed the same danger.

Scotland's National Record of the Historic Environment records Castle Sween as Cup Marked Stone (prehistoric). The official map says its point is accurate as follows: NGR given to the nearest 10m. The record does not by itself mean that the public may enter the place.

Built by unknown prehistoric inhabitants, Castle Sween is remembered as a significant Neolithic or Bronze Age cup marked stone, reflecting early ceremonial or ritual practices in western Scotland.

The historic-place record does not grant public access. Check current conditions and ownership before entering land or a building.