Thal'ena

Blood-Princess Thal'ena is a San'layn boss in Assault on Violet Hold. She is the daughter of Blood-Queen Lana'thel.

=Adventure Guide=

Blood-Princess Thal'ena is the daughter of the powerful vampyr Blood-Queen Lana'thel‎. She has been locked inside Violet Hold for years, suffering the gnawing pain of her eternal hunger. Now that her cell has opened, she intends to feed on the world.

See WoWPedia