In the Star Wars canon, Sannen was first mentioned in the English version of Battle Droids and Other Droids of War in the Star Wars Encyclopedia booklet series published by Altaya on July 27, 2021. In the Stars Wars Legends, Sannen was first mentioned in The Story of General Grievous: Lord of War on Hyperspace a article written by Abel G. Peña and illustrated by Joe Corroney released on February 15, 2006.
In the Star Wars canon, Sannen was first mentioned in the English version of Battle Droids and Other Droids of War in the Star Wars Encyclopedia booklet series published by Altaya on July 27, 2021. In the Stars Wars Legends, Sannen was first mentioned in The Story of General Grievous: Lord of War on Hyperspace a article written by Abel G. Peña and illustrated by Joe Corroney released on February 15, 2006.
- (English version)