Gugalanna

Gugalanna (poss. meaning “canal inspector of An”) was the first husband of Ereshkigal, the queen of Kur, the Sumerian underworld. Their son is Ninazu. In Inanna's Descent into the Underworld, Inanna tells the gatekeeper Neti that she is descending to the underworld to attend the funeral of "Gugalanna, the husband of [her] elder sister Ereshkigal".

Ennugi
Gugalanna may be an alternative name for Ennugi, one who was an attendant and throne-bearer of Enlil.