Sif

Sif is the golden-haired wife of Thor, a goddess linked to the earth, harvest and family, whose famous hair, widely read as an image of the ripe grain of the fields, is the hinge of one of the liveliest tales in the Prose Edda. Loki cuts off her hair as a malicious prank, and Thor's fury forces him to make amends: Loki goes to the dwarves, the master-smiths, who forge not only new hair of living gold that grows like real hair, but, in the same wager, the greatest treasures of the gods, Odin's spear Gungnir, Freyr's ship Skidbladnir, and Thor's own hammer Mjollnir. So Sif's stolen hair is, in the logic of the myth, the reason the gods possess their defining weapons.

Beyond this story little is told of her, and her older significance, perhaps as a grain- or earth-goddess matched to the thunder-god of the fertile storm, is a matter of inference. The tale is preserved specifically in chapter thirty-five of Snorri's Skaldskaparmal, the section of the Prose Edda devoted to poetic diction, since the episode was prized above all as the origin-story behind a cluster of kennings, gold called "Sif's hair," Thor called "Sif's husband"; the earlier poem Hymiskvida uses the kenning without ever telling the story behind it, so the fullest narrative comes from Snorri's thirteenth-century prose alone, a reminder of how much of the liveliest Norse mythology survives only because a medieval scholar troubled to explain the poets' own riddling vocabulary.

Snorri's Prose Edda includes a small genealogical detail about Sif that is easy to overlook amid the drama of her stolen hair: he identifies the archer-god Ullr as her son, but specifically as Thor's stepson rather than his biological child, meaning Ullr was born to Sif before her marriage to Thor, from an earlier union the sources do not name or describe in any further detail. This places two of the more thinly documented figures of the Norse pantheon, Sif and Ullr, into a single family unit without ever explaining the connection beyond the bare statement of it, characteristic of how much of the surviving mythology consists of scattered genealogical fragments that were evidently common knowledge to a medieval Icelandic audience but arrive to modern readers with no accompanying story to flesh them out. It also means that the household Snorri describes at the centre of Thor's family life quietly combines three figures whose worship, on the evidence of place-names and other external attestation, seems to have been considerably more prominent in parts of the Norse world than their scant appearances in the surviving mythological narratives would suggest on their own, Sif herself linked to fertility and the harvest, and Ullr traceable across dozens of Scandinavian place-names as discussed elsewhere in this atlas.

Whether this family grouping reflects a genuinely old set of religious associations, a stepfather storm-god, a grain-linked stepmother, and an archer stepson each drawn from different regional or functional cult traditions and only later assembled into one household by mythographers, or is simply a narrative convenience Snorri inherited from earlier tradition, is not something the sources allow us to determine with confidence.