The son of Separatist Senator Mina Bonteri, Lux was young, idealistic, and skeptical of the aims of the Republic and the Jedi Knights. His father was a fervent supporter of the Separatists, and was killed by clone troopers on Aargonar. Lux did not know what to make of Ahsoka Tano and her visit to Separatist space. After a failed peace overture begun by Mina extended to the Republic, Lux’s mother died, assassinated on Count Dooku’s orders. After making an ill-fated effort to avenge her by killing Dooku, Lux joined the anti-Separatist resistance on his homeworld of Onderon. After the rebels defeated the Separatists, Lux became Onderon’s Republic Senator.