Primogenitor Chapters
The Primogenitor Chapters, or First Born, are the Second Founding Space Marine Chapters descended from the Ultramarines Space Marine Legion.[1b] The Primogenitor Chapters revere Roboute Guilliman, Primarch of the Ultramarines, as their Patron and founding father.[1b]
These Chapters have stayed close-knit, often fighting alongside each other and always standing ready to answer any call from the Chapter Master of the Ultramarines.[1][Needs Citation]
Known Primogenitor Chapters
The exact number of Primogenitor Chapters is unknown.[1b] The Apocrypha of Skaros, the earliest known copy of the Codex Astartes, lists that there are 23, but does not name them.[1b]
- Aurora Chapter[1a][2]
- Black Consuls[1a][2][3]
- Doom Eagles[1a]
- Eagle Warriors[1a][2]
- Genesis Chapter[1a][2][3]
- Inceptors[1a][2]
- Libators[1a][2]
- Mortifactors[3]
- Novamarines[1a][2][3]
- Nemesis Chapter[2]
- Patriarchs of Ulixis[1a][2]
- Praetors of Orpheus[1a][2]
- Silver Eagles[1a][2]
- White Consuls[1a][2][3]
Sources
- 1: Codex: Ultramarines (2nd Edition):
- 2: Chapter Approved 2001, pg. 117
- 3: Deathwatch: Rites of Battle, pgs. 55-58