A Grand Dukedom is designation given by The Commonwealth to a territory equivalent to a TOG Prefecture, which is overseen by a Duke.

Each Grand Dukedom has approximately 50 Counties, and each County has 40 to 50 inhabited planets, with (on average) 1.3 habitable planets per star system.

The Commonwealth originally included 21 Grand Dukedoms, but the TOG-Commonwealth War has taken its toll and several are now TOG Prefectures of the New Orion Territories.

RL Commonwealth Map

Commonwealth ControlEdit


TOG ControlEdit