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Some time prior to the mission to Vassek's third moon, a mission was undertaken by Jedi Master Neebo to protect the refugees located on the moons of Sanjin. Neebo was presumed missing. However, Neebo's lightsaber was in the hands of General Grievous of the Confederacy of Independent Systems.[1]
Behind the scenes
The mission to the moons of Sanjin was first mentioned in the episode guide for "Lair of Grievous,"[1] the tenth episode of The Clone Wars' first season,[2] which originally aired on December 12, 2008.[1]
Sources
"Lair of Grievous" Episode Guide | The Clone Wars on StarWars.com (backup link) (First mentioned)