This battle was fought between Xim's empire and the Hutt Empire in the Xim Wars, at the Hutt-controlled world of Sleheyron. Although Xim deeply desired to take Sleheyron with the goal of making it his Ninth Throneworld, the Hutts successfully defended the planet, pushing Xim's fleet back to Kessel, which was known as Xo's Eye at the time.
Sources
Essential Atlas Extra: The History of Xim and the Tion Cluster on StarWars.com (article) (backup link) (First mentioned)- The Essential Guide to Warfare
Notes and references
In other languages