The Seven and One

The Septem et Unus, translated from High Cipritine as "The Seven and One", are the eight original houses of the Familiae Martialis. With the exception of House Aurelos, each of the houses' founders were personally chosen by Aurelion Aurelos to become the primarchs of his reunified empire, selected for their unwavering loyalty and aptitude for leadership. Aurelion himself lead his own house, as the last Imperator of Palaven.

The houses are House Aurelos, House Abrudas, House Aventen, House Caelax, House Fedorian, House Kandros, House Mehrkuri, and House Victus.