The Six Clans (シックスクラン, Shikkusu Kuran) is a term referring to the six dominant clans that reside in the Grassland.
The Six Clans, as a term, refers collectively to the six most powerful clans located in the Grassland region. Historically, those clans are the Karaya Clan, Lizard Clan, Duck Clan, Alma Kinan, Safir Clan and Chisha Clan.
Although the members of the Six Clans have seen conflict between each other, they have also cooperated in the past, usually in order to repulse foreign invasions of the Grassland.
- Gensosuikoden Kiwami Encyclopedia, page 310