Clan
In Fifth Edition canon, House Bjornaer is comprised of six Clans, each serving a traditional role in the House and descended directly from Bjornaer herself. Each clan teaches its own Inner Mysteries and its own viewpoints, within the framework of the House.
The six clans are: Clan Arelie, Clan Ilfetu, Clan Maruhs, Clan Midusulf, Clan Sirnas, and Clan Wilkis.
References
Legacy Page
The history of this page before August 6, 2010 is archived at Legacy:bjornaer_clans