Parmenio System

The Parmenio System is an Ultramar training well whose principal world exists to make Ultramarines, not to export grain. That single job did not spare it when Mortarion's Plague Wars arrived.

Death Guard and daemonic allies occupied the capital Hecaton and poisoned the ground. Guilliman led the counter-invasion and killed Ku'gath's lieutenant Septicus in the streets. Parmenio remains a child of the Ultramar Sub-sector rather than a random Ultima stub.

The Parmenio System still matters as the classroom Mortarion tried to turn into a garden of rot. Unofficial fan notes keep the Ultramar parent and refuse to file it as a forgotten agri-world.