Two entries named Bretiaus.
Bretiaus
In the Didot-Perceval, the brother of Lucius, Arthur’s Roman enemy. He was killed during the Roman War.
Source
Didot-Perceval | c. 1220-1230
Bretiaus
An Arthurian knight who successfully defended himself against a false charge that he murdered another knight’s pet wolf.
Source
Claries et Laris | 1268