Clans are the largest organizational unit in the Dark Brotherhood, consisting of up to three Houses. Led by a Consul and a Proconsul, Clans often compete against each other for medals, glory and other spoils in events called Vendettas.
As with all shadows, the Shadow Clan itself is neither Dark nor Light. Predominantly Gray, Arcona rules its home territory benevolently and focuses on maintaining a strong military and strict control of the system's underworld. The current Second Clan of the Brotherhood, Arcona has won three Great Jedi Wars Please see the website/Wiki page for more information.
Clan Odan-Urr is the first Light Side oriented Clan of the Dark Brotherhood, rising from its humble beginnings to become the current First Clan of the Brotherhood. This motley crew of underdogs and rebels, consisting of Jedi, Mandalorians, a flexible range of Force Users somewhere in-between the light and the dark, soldiers, mercenaries, and others, fights bravely against the galaxy's tyrants, hoping that one day its bright light will reach the darkest of corners.
Adapt. Ascend. Avail. Plagueis is the only clan in the Brotherhood solely adherent to the dark side of the Force. Adapting to both the vacuum of space and later a new dominion after being driven out of its original home, the clan has ascended to become a strong military and economic force - with an Imperialist influence - in the galaxy. The Sith, loyalists, Imperials, mercenaries, and subordinates of Plagueis thrive on strength, ruthlessness, and cunning to avail themselves.
The ghost of the Galactic Empire, Clan Scholae Palatinae ever stands proud, ready and able, an amalgamation of Dark Jedi and Sith, Gray Jedi and imperial loyalists, mercenaries and bounty hunters. Led by their shrewd Empress, houses Imperium and Excidium come together to form glaive and hammer, together mustering their martial might to secure their clan’s place as the third clan of the Dark Brotherhood.
Clan Vizsla was formed by a band of outsiders with a goal of earning money, fame, and glory. The clan is allegiant to credits, and by proxy the Iron Throne. Clan Vizsla isn’t tied to the dogma of the Jedi or Sith, anyone is capable of excelling to the highest levels within it. Members are not judged based on force sensitivity, but by their ability to bring credits into the Clan’s coffers… and their own pockets.