What is recorded here

South Ronaldsay, Castle Grimness may have been a medieval castle, though no surviving structure confirms the claim. The name suggests a harsh or shadowed role, perhaps a warning post or a private stronghold on the Orkney Islands. Whatever it was, it vanished completely, leaving only a point on a map and a name that sounds like a threat.

Scotland's National Record of the Historic Environment records South Ronaldsay, Castle Grimness as Castle (medieval)(possible). 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 the Maors of South Ronaldsay in the 14th century, Castle Grimness is remembered as a historic defensive structure on the Orkney Islands, reflecting the strategic importance of the area during the medieval period.

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