Nanna Sin of the Immortals

Nanna Sin's father was Enlil of the Immortals and his mother was Ninlil of the Immortals.  His paternal grandparents were Anu of the Immortals and Ki Urash of the Immortals; his maternal grandparents were Hiah of the Immortals and Nidaba Numarsheguni of the Immortals. He had a half-brother named Nergal.¹