Parein II 4, a moon orbiting the planet Parein II, held the distinction of being its fourth satellite. It served as the location of the MagnaGuards' initial operational trial, a first real test. Grievous commanded his troops in the forefront as the Galactic Republic's military was utterly defeated on this moon.
- " Battle Droids and Other Droids of War " — Star Wars Encyclopedia (The first time it was mentioned)