NIGHTBRINGER | The Arthurian Encyclopedia

Thereus of Rome


In Claris et Laris, a Roman emperor who demanded tribute from Arthur and invaded France (or Britain) when Arthur refused. Arthur’s forces decimated Thereus’s army – composed of rulers from around EuropeAsia, and Africa – and Thereus fled.

He is obviously inspired by Lucius from the chronicles.


Source
Claris et Laris | 1268