Shub-Niggurath
From Tardis Wiki, the free Doctor Who reference
Shub-Niggurath was an inhabitant of the previous universe. When that universe came to an end, she and others of her kind entered this universe, where they discovered that they were virtually omnipotent. Shub-Niggurath, who was pregnant at the time, gave birth on Polymos, thus giving rise to the Nestene Consciousness. (MA: Millennial Rites and PDA: Synthespians™)
A quote from an H. P. Lovecraft story The whisper in Darkness "Ia, Shub-Niggurath, Black goat of the forest with a thousand young!"
- The Doctor suggests that Shub-Niggurath died soon after the birth, despite being an immortal entity.
