Lots of info on this on the net. Read forum on www.theforce.net and www.fanforum.comOriginally Posted by glennyong
Darth Maul's master is Darth Sidious aka Chancellor Palpy When Darth Maul got killed, Darth Sidious recruited Darth Tyrannus aka Count Dooku. That was why Count Dooku was surprised when defeated by Anakin. Orginally, Palpy was supposed to come to Dooku's rescue and kill Anakin, but was in turn betrayed by Palpy as Palpy wants a more powerful apprentice (Anakin).
Darth Sidious was thought to be the apprentice to Darth Plageous (the wise) and was the one who killed him