In Warlords of the Dark Millennium: Dante, the Blood Eagles are said to be an alternative name for the Angels Numinous Chapter.
However, the author Aaron Dembski-Bowden's comments on Twitter on November 17, 2019 indicate that the Blood Eagles were either a progenitor Chapter for the Angels Numinous or an entirely separate Chapter that was closely allied with them.
- Aaron Dembski-Bowden's Twitter notes
- Munitorum: Chainsword, pg. 3
- Warlords of the Dark Millennium: Dante (6th Edition) (Digital Edition), pg. 9