Primarch's Codex
The Primarch's Codex is a copy of the Codex Astartes, that was gifted to the Castellans of the Rift by Lord Commander Guilliman himself. It is now a relic of the Chapter and is carried into battles by the Castellans' Chaplains.[1]
Sources
- 1: War Zone Nachmund: Rift War, pg. 59 - Codex Supplement: Castellans of the Rift - Relics