Darth Maul was a male Dathomirian Zabrak Dark Lord of the Sith who lived during the waning years of the Galactic Republic. Originally a Dathomiri Nightbrother born on Iridonia and known only as Maul, the infant Maul was given by his Nightsister mother to the Sith Lord Darth Sidious, who trained him in the ways of the dark side of the Force as his secret apprentice on a secret Mustafar training facility, along with the help of a split personality droid. Maul became a master of Juyo, Ataru, Jar'Kai, and Teräs Käsi, with training in Niman, and chose to wield a red-bladed saberstaff in combat. Though well trained in the ways of the Sith and a Sith assassin rather than a full apprentice, Maul was technically a violation of the Rule of Two because his own Master was at the time apprenticed to another, the Muun Sith Lord Darth Plagueis. Plagueis however, was fully aware of Maul's existence, and supported Sidious's decision to train him. The primary reason for Plagueis's support, despite the violation of the Rule of Two, was that Maul was trained to be expendable. As an assassin, he could perform high priority, boots-on-the-ground missions for the Sith without running the risk of exposing either Plagueis or Sidious should he fail.