Clans of the Dwaerkar

A Clan is generally an exceptionally rich, powerful, or otherwise influential Dwaerkar family. The status of Clanhood is generally delivered by one of the Great Clans of the Dwaerkar as a form of vassalage, although this has not always been practiced.

Great Clan
In the most general sense, a Great Clan is a Clan with an enormous amount of influence, spanning an entire Freehold and possibly more.

List of defunct Great Clans
Clan Yphergund