Ninsubur is a messenger goddess/god, Sumerian and Babylonian-Akkadian, and the servant of Inanna. She is very prominent in the kegend's of Inanna's Descent and the Death of Dumuzi. In Akkadian text the deity become male and is minister of Anu. A.G.H.
Jordan, Michael, Encyclopedia of Gods, New York, Facts On File, Inc. 1993, p. 186