Garadhros
Located in the Galactic Cores of the Milky Way and other galaxies in the Local Cluster.
Garadhros ruled all inhabited planets of the Galactic Cores (estimated between one and ten million planets) with a population of between one and ten quintillion beings
Garadhros was established in the wake of a successful war against the Empire of the Iaranori. During its rule, the Gergathan established a boundary about the Gathered Worlds that prevented its subjects from leaving or observing the freedom of the Scattered Worlds. Teleportation was developed about 500 million BCE, and Garadhros expanded into the Cores of nearby galaxies, most notably Andromeda.
About 22 million BCE, Garadhros met the expanding cultures of M-87 and its surrounding galaxies of the Virgo Cluster—the so-called Virgo Cultures. A great war ensued, a war which resulted in the detonation of M-87's Core. Garadhros, however, was conquered and the Gergathan shut down. The Virgo warrior Jel Haran fought, and was seriously damaged, in this final war.
After an interregnum of approximately one million years, Garadhros was succeeded by Diebethar.