Umbra

Umbra (birth name Dario Guido) was the founder of the Averte Statum, originally known as Avertestato, as an Italian (and later Spanish) militant group during the earliest years of the Century War. Many of it's original members had broken off from Revenant. Guido used the name Umbra was a nom-de-guerre, and the name soon became synonymous with him alone.

Downfall
Umbra was overthrown by Pertinax, in an operation that Demanarch was also involved in. Demanarch would later overthrow Pertinax and take his place.