San'sii "the Kursk" was a maleHuman who became the leader of the Force-using organization known as the Blackguard on the planetMustafar during the Galactic Civil War[1]. During his time as leader he recruited many non-Force sensitive individuals into the Blackguard, which went against Blackguard tradition[2]. He along with a large portion of the Blackguard were killed by spacers during the Blackguard Purge[1].
San'sii standing alongside another member of the Blackguard
San'sii was a Force-sensitiveHumanmale who joined the Force-using organization known as the Blackguard prior to or during the Galactic Civil War. He rose to become the leader of the group, a position known as the Kursk, and became one of it's strongest members[1]. Whilst head of the group he felt that the cult was too small in size, and introduced a new rule allowing non-Force sensitive individuals to join to boost numbers. This broke tradition running back to the founding of the group after the Seventh Battle of Ruusan by the Dark JediVulta Daanat. The new troops quickly filled out the Blackguard's ranks and soon became the most visible part of the faction, leading many who encountered the group to believe they were simply a paramilitary organization rather than a Force-using cult[2].
In 1 ABY a Sullustanarchaeologist named Mi Fon Lu wished to research within the Southern Jedi Ruins in which the Blackguard made their home. However fearing for his safety amongst the Blackguard he hired spacers to clear out the ruins. San'sii was killed along with the rest of the Blackguard in the ruins during what became known as the Blackguard Purge[1].
San'sii and his underling engaging in a deadly battle against a group of spacers
San'sii used a Red bladed lightsaber in combat as did most members of the Blackguard, however instead of the normal Blackguard masked uniform San'sii wore the Cloak of the Kursk, a unique robe worn only by the leader of the Blackguard. After his death the cloak was taken by the spacers who killed him[1].