Although this article is based on canonical information, the actual name of this subject is pure conjecture.
A battle was fought between the Jedi and the ZygerrianslaveEmpire after the Zygerrians did not comply to cease their slaving operations. The Jedi crushed the Zygerrians.
The Zygerrian slaver Darts D'Nar felt great resentment towards the Jedi for this act and took out his frustration on Obi-Wan Kenobi in a duel during the Clone Wars.