Zamora

Zamora is the daughter of Zamorak when he wasn't a god yet. Noone, not even Zamora herself, knows who her mother was, but she was probably human, because Zamora is human as well, and Zamorak wasn't. After Zamorak became a god he made his daughter invincible to any kind of attack or disease, and even age. This is the reason that she is still alive today, although her current location is unknown.