Event · M41–M42
Parmenio
The Battle of Parmenio was an engagement of the Plague Wars, fought on the world of Parmenio in the 41st Millennium between Imperial and Chaos forces. It is recorded as one of the named battles of that wider struggle, and the Orrery map anchors it to the world of Parmenio, its host location. Surviving accounts give the battle a modest place in the Imperial record, and the cause of the fighting is generally attributed to the wider Plague Wars rather than to any event peculiar to the world itself. The Plague Wars are associated with forces devoted to Nurgle, chiefly the Death Guard and their warbands, contending against Imperial defenders, among whom the Space Marines of the Ultramarines are the most frequently named. Within that setting, Parmenio is treated as one theatre among several, and the fighting there is placed in the closing centuries of the 41st Millennium, with consequences carrying into the 42nd. Accounts differ on the order of engagements, and the detailed course of the battle, including the composition of the opposing armies and the named commanders on the ground, is not firmly established. This entry therefore describes what is attested and does not supply particulars that the setting does not record. As to outcome, the battle is understood chiefly through its place in the Plague Wars, whose effects on the surrounding worlds are better documented than events on Parmenio itself. On the Orrery timeline the battle serves as a hook into the Plague Wars, and on the map it connects the world of Parmenio to the neighbouring Imperial systems and the Chaos incursions that contested them. Readers seeking the wider context are directed to the Plague Wars entry, to the Death Guard and the Ultramarines as the principal contemporaries and adversaries, and to the map neighbours of Parmenio for the setting in which the fighting took place.
See where Parmenio occurred on the galactic map in the 41st Millennium.