Hrothgar are not differentiated between by which tribe they hail from, they are differentiated between by whether or not they currently are in service to a queen. The "tribal" differences are there for the Doylist purpose of every race having two different clans to choose between; that, and letting people make Kimahri expy characters.

Further the Hrothgar naming standards appear to have been used by Bozjans in general, if Misija's name is anything to go by.