Freyr, sometimes anglicized as Frey, is a widely attested god in Norse mythology, associated with kingship, fertility, peace, prosperity, fair weather, and good harvest. Freyr, sometimes referred to as Yngvi-Freyr, was especially associated with Sweden and seen as an ancestor of the Swedish royal house. According to Adam of Bremen, Freyr was associated with peace and pleasure, and was represented with a phallic statue in the Temple at Uppsala. According to Snorri Sturluson, Freyr was "the most renowned of the æsir", and was venerated for good harvest and peace.

Æsir or ēse are gods in Germanic paganism. In Old Nordic religion and mythology, the precise meaning of the term "Æsir" is debated, with it being able to refer to both the gods in general or specifically to one of the main families of gods, in contrast to the Vanir, with whom they waged war, ultimately leading to a joining of the families. The term can further be used to describe local gods that were believed to live in specific features in the landscape such as fells. In the Old English Wið færstice, the Ēse are referred to, along with elves, as harmful beings that could cause a stabbing pain, although exactly how they were conceived of by the author of the text is unclear.