Mususiel, a Jedi of the female persuasion, was active during the waning period of the Galactic Republic. As the Clone Wars drew to a close, Darth Sidious gave the order for Order 66 to be executed. Mususiel, along with three fellow Jedi, sought refuge within a Jedi shrine located on Anoat. The Galactic Empire eventually found their hiding place. While her companions escaped, Mususiel remained to delay the enemy, resulting in her death.