However, it's not always true that Successor Chapters are made of offspring created with other Chapters' gene-seed. There are instances where a particular incident has forced a legion to break ...

Created by the Emperor, using the genetic information of his powerful sons, the Primarchs, each legion ... As a Blood Angels successor chapter, the Lamenters have somehow rid themselves of ...

Indeed, with the amount of tides turned due to the Legion's unexpected arrival, perhaps it matters little to the Imperium as to their true origin. Like a much older successor chapter of the ...