The Battle of Eriadu heavily disrupted the economics of Eriadu, and opened the door, so to speak, for the ORS to take control of the planet and eventually the system, after which time they took their name. This was the one and only battle in which Grand Admiral Tempra fought. Tempra was a non-Force Sensitive, who served as nothing more than a "temporary" Grand Admiral, whilst the Sith heirachy was re-arranged following Astra's exile.