Palpatine's blue-bladed lightsaber

This blue-bladed lightsaber belonged to the Sith Master Darth Sidious after his resurrection on Byss.
==History==
In his lab on the Imperial throne-world, Darth Sidious kept a number of stolen Jedi lightsabers in case he needed them, one of which was blue-bladed.Dark Empire 5
In 10 ABY, Luke Skywalker destroyed all but one of Sidious's clones, but Sidious's essence moved into the one clone that Luke hadn't destroyed yet and the newly-possessed clone grabbed his blue-bladed lightsaber from the wall of the lab and used it to duel Luke. He won the duel and got Luke to turn to the dark side and become his apprentice.
Later in 10 ABY, he discovered onboard his Super Star Destroyer Eclipse that Luke renounced the dark side thanks to the efforts of his twin sister, Leia Organa Solo. Enraged, Sidious used his blue-bladed lightsaber to attack Luke. Despite the Sith Lord's ferocious power, he was caught off guard by Skywalker. Mere minutes later, the Eclipse was destroyed along with Sidious's clone and his stolen lightsabers.
==Appearances==
*Dark Empire 5 
*Dark Empire 6
==Notes and references==
Palpatine