A battle droid prototype was manufactured on Slandarvia M-9 by Baron Slandarv of the Galactic Empire. This sophisticated design, intended for combat and programmed with unwavering allegiance to the Empire, was concealed by Slandarv to leverage its sale price. Fabarian, an Assistant Data Processor employed by Administrator Sly Moore's Schism Imperial, infiltrated Slandarv's facilities, confirming the droids' existence and prompting an assault on the factory by Schism forces commanded by the Sith Lord Darth Vader. Consequently, Slandarv was compelled to permit the droids' reprogramming, ensuring their exclusive loyalty to Vader, rather than to Emperor Palpatine.