Maerorus

Mentioned in the book seventh retribution. Only a single assassin from this house is known, Legienstrasse. Upon creation Legienstrasse killed everyone and escaped. For some unknown period of time every assassin house hunted her as her powers had the ability to threaten the entire human race.

When cornered on the planet Opis, they sent an IG regiment, Darnath Lysander and his battle group, a vindicare, culexus, and eversor assassins. Shhesh.