|Colour Scheme||Info||Legion Symbol|
|Colours:||Black and Orange stripes |
The Legio Oberon was a Titan Legion of the Collegia Titanica. During the Horus Heresy, the Legion remained loyal to the Emperor and fought alongside the Ultramarines in their battle against the World Eaters and Word Bearers on Nuceria.
The symbol of the Legio is that of a "cleaved crown." 
- 1: Betrayer (Novel), [Needs Citation], pg. 302
- 2: Warhammer 40,000 8th Edition Rulebook pg.158-159
- 3 Butcher's Nails (Novel), pg. 201