Dail'Liss
Dail'Liss is an existing character from Legends.[1]
When the Odacer-Faustin Sith academy burned down in 3645 BBY, some of Dail'Liss's roots were preserved in the library basement. During the time of the Galactic Civil War, those remains were used as a throne by the exiled King Nefta.[2]