Gefjun

Gefjun appears in the Old Norse narrative corpus in an episode that links her to the formation of the Danish island of Zealand: in the mythic account preserved in medieval sources she ploughs land, a feat used to explain the island's origin and to connect her to legendary kings such as the Swedish Gylfi and the Danish Skjöldr. She is thus embedded in mythic-historical stories recorded in the Poetic Edda, Snorri Sturluson's Prose Edda and Heimskringla, and in skaldic verse, where her actions serve as etiological explanation for landscape and as part of the dynastic narrative world of those works (sources: Wikipedia summary of attestations; Poetic/Prose Edda/Heimskringla attestations as noted in the provided materials).

The provided attestations do not give a detailed physical description. The myths reference Gefjun's connection to oxen (often phrased as 'her oxen children') in the ploughing episode, implying a relationship with draught animals used to shape the land, but no sustained visual portrait or iconographic detail is recorded in the supplied sources.

In the surviving attestations Gefjun's principal actions are agricultural and etiological: she is explicitly associated with ploughing and with the origin of Zealand, indicating the mythic capacity to shape landscape. She is also linked in the sources with foreknowledge and with virginity as personal or cultic attributes. The materials further tie her into narratives involving legendary kings (Gylfi, Skjöldr). The sources do not ascribe broader or additional supernatural powers beyond these documented associations.