Sword of Right and Wrong
Technically a sabre, the Imperials claim that it is a relic from before the SE. Specifically they believe that it is the sword of the Starwalker, mythical founder of the old Astral Empire. It is named so because as it is written in old texts
its every thrust is right and its every thrust is wrong but it always serves the will of the StarsLost after the fall of the Denorian Kingdoms, it resurfaced under not-so-clear circumstances after the end of the Colonial Wars. It is entrusted by The Imperial Council to Starlady Eleanna Goldenheart, High Marshal of the Empire for keeping and it is prominently displayed in her throne room.