NIGHTBRINGER | The Arthurian Encyclopedia

Dyonis

Diones, Dionis, Dyounes, Ydones

Brother of AlibelDion, and Casibilant, and nephew of Duke Calles.

His six cousins revolted against their father. Dyonis and his brothers assisted Calles in the war, in which they were joined by AgravainGaheris, and Gareth.


Source
Vulgate Lancelot | 1215-1230