Cartographia Imperialis

Chapter World · Segmentum Ultima

Macragge

Explore Macragge, fortress heart of Ultramar and home of the Ultramarines, with M41/M42 lore, history, status, and its location on an interactive 40K map.

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ClassificationChapter World
SegmentumUltima
AllegianceImperium of Man
UltramarinesRealm of Ultramar

Overview

On Macragge, an order has a reasonable chance of reaching someone capable of carrying it out. The world’s government, military schools and civil institutions are organised to keep working when individual men die. By Imperial standards, that is enough to make the place remarkable.

Its order is maintained under fortress walls and the authority of the Ultramarines. Citizens have duties as well as protection, and their world’s position at the heart of Ultramar gives enemies a reason to attack it. The people conducting their business beneath its defences live with the knowledge that competence can keep a city supplied. It cannot remove the city from an enemy’s plans.

History

Ultramarine traditions have made government and defence closely related duties on Macragge. Institutions are expected to support one another through war. Repeated attacks have tested that expectation without removing the world from its place at the centre of Ultramar.

Military significance

The Ultramarines and the wider defence of the realm draw on Macragge’s command, recruitment and fortifications. Combined arms and strategic depth are supported by civil order that keeps supplies moving. Preserving a functioning settlement is therefore part of preserving the force defending it.

M41 and M42 status

M41 · Pre-Rift

Fortress world and heart of Ultramar.

Macragge remains Ultramar’s fortress and command centre, prepared for threats from the east as well as the work of defending the realm itself.

M42 · Era Indomitus

Sanctus-side command symbol for Imperial restoration.

The Black Legion assault of 999.M41 ended with Guilliman restored to life. Macragge subsequently endured the Plague Wars. Its functioning institutions give Imperial restoration something practical to draw on in Sanctus.

Timeline

Ultramar defense archives reaffirm Macragge as the realm's command center.

Regional defense drills synchronize fleet, chapter, and planetary assets.

Fortress readiness rises after eastern threats intensify.

Civil reserve ledgers are reviewed under heightened alert.

The Black Legion assaults Macragge; Roboute Guilliman is restored to life on the world and takes command of the Imperium's defence.

Indomitus planning treats Macragge as a major restoration node.

The Plague Wars: Mortarion's Death Guard invade Ultramar; Macragge weathers probing attacks and the Illyrium unrest until Guilliman's return breaks the sieges.

Related charted locations

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Cartographic positions and several administrative details are intentionally approximate where published Warhammer sources conflict or provide no canonical coordinate system.