deity

Hel

The named Norse ruler of the dead realm that shares her name. Not Hades as Greek underworld lord, and not death as bare concept.

Norse tradition

Hel appears in Norse tradition.
Völuspá and Baldrs draumar in the Poetic Edda name Hel among the dead-realm speech the seeress and Óðinn seek. A named Norse ruler/place-figure in that verse corpus, not Hades as Greek underworld lord and not Christian hell.
from Anonymous (Eddic poems); Carolyne Larrington (translation) · Poetic Edda, medieval Icelandic compilation; Larrington trans. 1996/2014
appears in · sourced · documented
Hel appears in Helheim.
Baldrs draumar and Völuspá in the Poetic Edda seat Hel in the dead-realm that shares her name; helheim is the published place endpoint for that realm. A named presence of Hel in Helheim speech, not Christian hell and not underworld as a bare concept alone.
from Anonymous (Eddic poems); Carolyne Larrington (translation) · Poetic Edda, medieval Icelandic compilation; Larrington trans. 1996/2014
appears in · sourced · documented
Helheim is sacred to Hel.
Snorri’s Gylfaginning allots Hel the realm of the dead that shares her name and rule. A named realm dedicated to that being, not Christian hell under a Norse label and not hel→appears_in→helheim as the PE seat alone.
from Snorri Sturluson · Gylfaginning, c. 1220
sacred to · sourced · documented