Thirteenth Founding var addthis_config = {"data_track_addressbar":true};

The Thirteenth Founding or Dark Founding was one of the instances where new Space Marine chapters were created. The details of the Thirteenth Founding are almost completely unknown; it is unknown to the Imperium how many, and which Chapters were created, and if they still exist. This founding was the only in which the Adeptus Terra does not possess the original gene-seed of the founded Chapters.¹

Chapter Name	Parent Chapter	Homeworld	Notes	Source
Exorcists	Unknown	Banish	Designed to be most efficient in fighting Daemons	Armageddon website
Death Spectres	Unknown	Occludus	Genetic drift results in initiates becoming albino upon realistion of the marine creation process.	Exhumed (Short Story), p.30

Sources

• ¹Codex: Ultramarines p. 8

Related Articles

• Founding