Nyx

Nyx (Νύξ, "night") – Nox in Latin translation – is the Greek goddess (or personification) of the night. A shadowy figure, Nyx stood at or near the beginning of creation, and was the mother of other personified gods such as Hypnos (Sleep) and Thánatos (Death). Her appearances in mythology are sparse, but reveal her as a figure of exceptional power and beauty. She is found in the shadows of the world and only ever seen in glimpses.

Read more about Nyx:  Children, In Popular Culture