Nanna

Nanna (Greek Attic: ????), is the Goddess of the Moon, and the consort of the Reed Goddess; Ningal. She is an ally of the Zodiac Signers, the Olympians, and a member of the Sumerian Pantheon of Deities.

Chronology
Nanna was a Deity in the Sumerian Pantheon as the father of Shamash the Sun God in Sumerian Mythology and the father of Ishtar in some works of mythology from Ancient Mesopotamia. She inherited the mantle of vice-leader of the Sumerian Deities from her father who later passed onto the world of the deceased deities, due to not having any worshipers left. After marrying Ningal and surviving through a devastating wars where the Olympians frantically defended humanity, Nanna approached Helena and offered her the help of the Sumerian Pantheon. Soon after, she became the Supreme Commanders of the Deities in the Sumerian Pantheon. Helena decided to accept the help of Nanna and the Sumerian Pantheon became their allies.