Around 3637 BBY, Emperor Valkorion sent his sons, Prince Arcann and Prince Thexan across the galaxy to conduct a series of raids to test the strength of the two dominant galactic governments: the Galactic Republic and the Sith Empire. The attacks were largely mysterious to the two entities.
- Sacrifice (First appearance)
- Star Wars: The Old Republic: Knights of the Fallen Empire (Mentioned only)
- Star Wars: The Old Republic: Knights of the Eternal Throne (Mentioned only)