The conflict known as the Battle of Parein II 4 occurred on the fourth satellite orbiting the planet Parein II, and it took place during the period of the Clone Wars. During this engagement, the Republic Military, under the command of Jedi General Sannen, clashed with the forces of the Separatist General Grievous. Grievous's forces notably included his IG-100 MagnaGuards. This battle served as the MagnaGuards' initial combat deployment, and it proved devastating for the Republic forces, who suffered a major defeat. Grievous spearheaded the attack with his troops at the forefront. Sannen made a valiant attempt to directly confront the cyborg commander, but he was unsuccessful; a MagnaGuard's electrostaff pierced the Jedi's throat, ending his life.
Within Star Wars canon, the battle's initial mention occurred in the Star Wars Encyclopedia booklet series, specifically in Battle Droids and Other Droids of War, published by Altaya on July 27, 2021. It was later designated as the Battle of Parein II 4 in Miscellaneous Ships and Vehicles (2), another installment in the Star Wars Encyclopedia booklet series, released by Altaya on July 29, 2022.
Within Stars Wars Legends, the Batlle of Parein II 4 was first mentioned in The Story of General Grievous: Lord of War on Hyperspace (article) (content obsolete and backup link not available) a article written by Abel G. Peña and illustrated by Joe Corroney released on February 15, 2006.
- " Battle Droids and Other Droids of War " — Star Wars Encyclopedia (First mentioned)
- " Miscellaneous Ships and Vehicles (2) " — Star Wars Encyclopedia (First identified as Battle of Parein II 4)