Cleansing of the Nine Houses

The Cleansing of the Nine Houses was one of the conflicts of the Old Sith Wars, occuring sometime after the Great Sith War but before the Mandalorian Wars. The details are lost to history, but it appears to have been a civil war in the Tapani Sector. The Jedi Order and House Pelagia battled the Sith inspired Mecrosa Order of assassins, which was sponsored by House Mecetti. Also, judging by it's name, it appears two other noble houses were either wiped out or absorbed by either Mecetti or Pelagia.