Board Thread:Lore Discussion/@comment-10993011-20140916201622/@comment-76.19.6.109-20140924120200

We'll, Tiber's race is unknown. There are conflicting accounts about weather or not he was born in a small village in high rock (in which case he would have been a Breton) or from the northern continent of Atmora (in that case he was a Nord).

Cephorus II was probably whatever race Tiber was, since he is descended from Tiber's brother. Later on in the dynasty however, pelagius's wife, a dunmer, comes to power. After that Uriel the IV, a Breton, is adopted into the family by emperor Cassandyr. So it can be assumed that Uriel VIII and Martin were at least half Breton.