Dagr

In the medieval Icelandic tradition preserved in the Poetic Edda and the Prose Edda, Dagr is presented as a son of Dellingr. Snorri Sturluson (Gylfaginning) reports that Odin gave Dagr a chariot and the horse Skinfaxi and placed him in the sky to ride around the Earth, bringing daylight each day. Manuscript variation in Snorri's Gylfaginning affects details of mothering/genealogy (some variants name Nótt or Jörð), a point noted in modern discussions of the texts.

The sources give brief, poetically framed descriptions: Dagr is described as bright and beautiful (Prose Edda, Gylfaginning). He rides a horse, Skinfaxi, whose gleaming mane is said to illuminate the sky and the Earth (Vafþrúðnismál; Prose Edda). Hrafnagaldr Óðins includes a verse where the son of Delling urges on a horse 'adorned with precious jewels' and the horse's mane shines over mankind, emphasizing radiance rather than detailed anthropomorphic features.

Dagr's principal role is the personification and ordering of the daylight cycle: he rides across the sky such that Skinfaxi's mane 'draws day to mankind' and illuminates the world. Snorri frames this as a regular, roughly 24-hour cyclic motion. Beyond bringing daylight and participating in the familial cosmology of personified natural phenomena, the medieval sources do not attribute additional magical powers or hostile behavior to Dagr. Scholarly proposals (e.g., Otto Höfler) linking Dagr with the heroic name Svipdagr are interpretive hypotheses rather than direct textual claims.