A blue-bladed lightsaber was wielded by Jedi Knight Jang Li-Li prior to and during the Clone Wars.[1]
In 19 BBY, Li-Li died when her starfighter was destroyed by the Confederate-allied Dark Jedi Asajj Ventress. Afterwards, Ventress scoured the debris and found Li-Li's severed hand still clutching her lightsaber's charred handle. She presented the trophy to the Head of State of the Confederacy, Count Dooku. Despite being sad at her passing, Dooku modified her partially destroyed lightsaber by outfitting it with a holorecorder to deliver a private message to Grand Master Yoda.[1]