That much is known. It has been recorded, assigned a monument number, and noted as a place worth preserving in the national memory. Beyond that, the details are quiet.

Rathduane is a small rural townland in north Cork, and like many such places it carries traces of religious use stretching back centuries. Chapels of this kind, often referred to in Irish archaeological records simply by their function and location, range from early medieval oratories to post-medieval Mass houses, the latter built during or after the Penal era when Catholic worship was conducted in improvised or modest structures. Without further documentation it is not possible to say which tradition this particular site belongs to, or what fabric, if any, survives above ground. That ambiguity is itself part of what makes it interesting. It exists as a named place, acknowledged but not yet fully described.