The scene of Sigyn & Loki has been depicted on a number of paintings, including 'Loke och Sigyn' (1850) by Nils Blommér, 'Loke och Sigyn' (1863) by Mårten Eskil Winge, 'Loki och Sigyn (1879) by Oscar Wergeland, and the illustration 'Loki und Sigyn Hel mit dem Hunde Garm' (1883) by K. Due to this early connection with Loki, Sigyn has been theorized as a god dating back to an older form of Germanic paganism. While the name Sigyn is found as a female personal name in Old Norse sources (Old Norse sigr meaning 'victory' and vina meaning 'female friend'), and though in surviving sources she is largely restricted to a single role, she appears in the 9th century skaldic poem Haustlöng from pagan times, written by the skald Þjóðólfr of Hvinir. This has been interpreted as Sigyn soothing the bound Loki. Above and to their left is a knotted serpent. The bottom portion of the west side of the cross features a depiction of a long-haired female, kneeling figure holding an object above another prostrate, bound figure. The mid-11th century Gosforth Cross located in Cumbria, England, has been interpreted as featuring various figures from Norse mythology.

The bottom portion of the west side of the Gosforth Cross. The final mention of Sigyn in Skáldskaparmál is in the list of ásynjur in the appended Nafnaþulur section, chapter 75. Sigyn is introduced as a goddess, an ásynja, in the Prose Edda book Skáldskaparmál, where the gods are holding a grand feast for the visiting Ægir, and in kennings for Loki: 'husband of Sigyn', 'cargo of incantation-fetter's arms', and in a passage quoted from the 9th-century Haustlöng, 'the burden of Sigyn's arms'. As a result, Loki is again described as shaking so violently that the planet shakes, and this process repeats until he breaks free, setting Ragnarök into motion. However, when the bowl becomes full she leaves to pour out the venom. Sigyn places herself beside him, where she holds out a bowl to catch the dripping venom. The guts of 'Nari or Narfi' are then used to tie Loki to three stones, after which the guts turn to iron, and Skaði places a snake above Loki. Váli is changed into a wolf by the gods, and rips apart his brother 'Nari or Narfi'. Here, the gods have captured Loki and his two sons, who are stated as Váli, described as a son of Loki only, and 'Nari or Narfi', earlier described a son of Sigyn and Loki. Sigyn is mentioned again in Gylfaginning in chapter 50, where events are described differently than in Lokasenna. There, she is introduced as being married to Loki, and that they have a son by the name of ' Nari or Narfi'. In Gylfaginning, Sigyn is introduced in chapter 31. Sigyn appears in the books Gylfaginning and Skáldskaparmál in the Prose Edda. 'Loki Bound (motive from the Gosforth Cross)' (1908) by W.

Prose edda