ArchImperator is a military title given to the highest ranked military commander of a ruling organization within the Solar System.
The ArchImperator of the Society is Magnus au Grimmus. He serves as the Supreme Commander of the Society's military might.
Darrow is the ArchImperator of the Solar Republic. After the events of Iron Gold, the Senate removes Darrow from the position and the title goes to his second in command, Cadus Harnassus.[1] In Dark Age, the Senate formally names Zan, a Blue and commander of Luna's defense fleet, ArchImperator.[2]