Leto (Gr: Λητώ) was the titaness of motherhood. She was a daughter of Koios and Phoebe and she mothered Apollo and Artemis with Zeus. Leto was most commonly seen as a titaness of motherhood. After she gave birth to Apollo and Artemis, she also became a protector of the young like they both were. She is also a goddess of modesty. Her sister was Asteria, goddess of the night, so Leto is assumed to either be a goddess of night like her sister, or a goddess of light, the opposite of her sister.