Port Demesnus

Port Demesnus is an Imperial war world in Segmentum Obscurus. No sector, system, or coordinates are recorded for it, and a surviving source map marks only its crystal moon, Coheria, rather than the world itself.

The fighting of the Battle of Port Demesnus took place on Coheria rather than on the surface of Port Demesnus; Watch Captain Artemis received a distress call from Port Demesnus before diverting to the moon.