Before Noela joined the coven, she was a young woman living a horrific lifestyle in Lisbon. 2 years after Victoria joined the coven, Hilda met her and decided to change her in order to free her from her life on the streets.
Noela had newly adjusted to her a happy life with her coven shortly before the Volturi came and accused them for drawing too much attention from the human society and executed Hilda for the crime. Heidi was immediately taken in by the Volturi, under the influence of Chelsea's power. Noela and the other three vampires tried to escape, but only Victoria survived.
Noela is mentioned only in The Twilight Saga: The Official Illustrated Guide.