Ninhursag (or Ki) is the Babylonian Antu, and is known in the Western lands as Juno. Ninhursag was connected with all aspects of the life of women, most particularly married life, fertility, and matriarchy. Ninhursag’s spouse was Enki. Ki’s spouse was An, and Enki was descended from her. Incestuous lot, that pantheon.
In a triparte maiden / mother / crone taxonomy, Ninhursag is mother and protector.