Vailyn (Earth-2042)

"This is the way of our Order. An individual may die, but the Sith are eternal."

- Darth Zannah

Darth Zannah, born Vailyn, was a female Force-sensitive Human from the planet Somov Rit. She was recruited to fight for the Jedi Order during the Ruusan campaign of the New Sith Wars but, after arriving on Ruusan, was separated from the group during a Sith attack and presumed dead. Unbeknownst to the Jedi, she had been saved by a high-ranking member of the Brotherhood of Darkness and Dark Lord of the Sith, Darth Bane, the only Sith survivor of the war, who decided to take her as his apprentice. Vailyn cast away the handle of her youth and instead embraced her Sith name, becoming Darth Zannah and the first preponent of the Rule of Two.

Source

 * https://starwars.fandom.com/wiki/Darth_Zannah