Mad Monks of Xo
The group known as the Mad Monks of Xo met their end, having been "silenced" by the Trandoshan bounty hunter Bossk. This event happened on or before the year 3 ABY.
Behind the scenes
The initial reference to the Mad Monks of Xo appeared within the short story titled "Tooth and Claw", which was penned by Michael Kogge. This story was included in the anthology From a Certain Point of View: The Empire Strikes Back. Their designation is the same as that of the Star Wars Legends planet Xo.