The Marines Mordant is a Loyalist Space Marine Chapter of unknown Founding and a Successor Chapter of the Ultramarines. Its Chapter planet is the Mining World of Vitrea Mundi located in the Absinthia System. The Chapter was obligated to undergo a one-hundred-year penitent Crusade through the Tempest Hippocrene in recompense for some unknown offence or dishonour. Almost nothing else is known about this Chapter in current Imperial records.

Chapter AppearanceEdit

Chapter ColoursEdit

The Marines Mordant's Chapter colours are not listed in current Imperial records.

Chapter BadgeEdit

The Marine Mordant's Chapter badge is not listed in current Imperial records.


  • Legion of the Damned (Novel) by Rob Sanders, pp. 26, 97
  • Sons of the Hydra (Novel) by Rob Sanders

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