"Selene was the titan goddess and the divine personification of the Moon. She was a daughter of Hyperion, the titan of light, and the sister of Eos and Helios, correspondingly the titans of dawn and the Sun. Selene’s dearest lover was Endymion, who was granted eternal youth and immortality on the condition of spending his life asleep. Selene visited him every night and the couple had many children, the most notable of whom were the Menai, the goddesses of the lunar months."
Mythology Meme → Four Titans [4/4] → Thea Theia was the Titan goddess of sight (thea) and shining light of the clear blue sky (aithre). She was also, by extension, the goddess who endowed gold, silver and gems with their brilliance and intrinsic value. Theia married Hyperion, the Titan-god of light, and bore him three bright children—Helios the Sun, Eos the Dawn, and Selene the Moon.