In the treaty between Hittite king Šuppiluliuma I and Mitanni king Šattiwaza Ninegal appears after the couples Enlil and Ninlil and Anu and Antu in a list of "primeval gods" meant to serve as divine witnesses.
In the agreement between Hittite ruler Šuppiluliuma I and Mitanni king Šattiwaza, Ninegal is positioned after Enlil and Ninlil, Anu and Antu, in a roster of "ancient deities" that were to act as divine witnesses.