In 700 BBY, a cult of Bpfasshi Dark Jedi tried to establish themselves throughout the Bpfassh system. A Jedi task force engaged and killed them, with the Jedi Knight Minch killing their leader on Dagobah.
During the Clone Wars, another group of Bpfasshi Dark Jedi were responsible for a rampage of terror and destruction throughout the Sluis sector. A Jedi task force led by Yoda was sent to stop them and quell the insurrection in the Bpfassh system. Yoda pursued and killed one of the Dark Jedi that had kidnapped smuggler Jorj Car'das. The Bpfasshi held a strong dislike for all Jedi since that episode.
Despite this earlier hostility, the Bpfasshi joined the New Republic.