Librarium
A Librarium or Librarius is the command and communications center of a Space Marine Chapter's fortress-monastery, and the repository for centuries of wisdom and history, culled from the reports, treatises and memoirs of the chapter's greatest warriors and finest minds.
Most of the servants who work in the Librarium are psykers - those who are full battle-brothers of the chapter are known as Librarians. Librarians hold a functionary rank, describing their role as well as their position. The four battlefield ranks of Librarian, in ascending order of importance, are Lexicanium, Codicier, Epistolary and Chief Librarian. Each of these enters battle ready to support his brothers with a range of psychic attacks and defences.
In the deepest bowels of a Librarius lay the Chapter archives, where many forbidden and dangerous secrets and lore often are kept.[3] Within certain chapter fortresses, the Librarium serves as the control center for the base's defence systems.[1]
Noteworthy Librariums
- The Library of Ptolemy, within the Ultramarines' Fortress of Hera
- The Sanctum Sanctorum, within the Grey Knights Citadel of Titan.[5]
- The Librarius of the Exorcists Fortress-Monastery of Banish is said to be the greatest repository of knowledge within its Segmentum.[4]
Sources
- 1: Warhammer 40,000: Rogue Trader, [Needs Citation]
- 2: Codex Supplement: Raven Guard (8th Edition) pg.11
- 3: Codex: Space Marines (10th Edition), pgs. 40-41
- 4: Oaths of Damnation (Novel) - Chapter 1
- 5: Codex: Grey Knights (5th Edition), pg.10–11