Medrengard
From Lexicanum
Medrengard is the Daemon World of Perturabo, and the current homeworld of the Iron Warriors Traitor Legion. It is seen in nightmarish visions as a world turned into a vast fortress with mountains of inconceivably high towers and dungeons penetrating into its core.
Information gained from reconnaissance within the Eye describe the world as a bleak jail world where slaves are worked to death, with great Chaos warships tethered to its tallest towers, in which reside the Iron Warriors themselves.
Other descriptions of Medrengard depict it as a huge fortress world with slave pits and towering pillars. In the white sky a black sun pours smoky threads down onto the surface of the corrupted world.
While there appear to be no 'native' inhabitants of Medrenguard, the mutant 'unfleshed' are known to roam the hills and gullies.
