The Second Sith Civil War occurred during the New Sith Wars, sometime prior to 1,010 BBY. In it, the New Sith Empire collapsed into infighting. The Jedi Master Skere Kaan conquered the feuding warlords and unified them, declaring himself a Sith Lord. Kaan established the Brotherhood of Darkness, with Kopecz and Qordis as two of the highest-ranking members.
- Star Wars: Knight Errant (First appearance)
- Darth Bane: Path of Destruction (Mentioned only)
- Star Wars: Darth Plagueis (Indirect mention only)
- Star Wars Episode I: The Phantom Menace novelization (First mentioned)