This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Wagner spent roughly twenty six years on the Ring, from an 1848 prose sketch to the complete four opera premiere at his own purpose built theater in Bayreuth in August 1876. Das Rheingold, Die Walkure, Siegfried and Gotterdammerung tell one continuous story: a ring forged from stolen Rhine gold by the dwarf Alberich, taken by the god Wotan and pledged to giants for the fortress Valhalla, eventually won back by the hero Siegfried, and finally returned to the river by the Valkyrie Brunnhilde after her death on Siegfried's funeral pyre brings the gods' hall down in flame.
No single medieval text tells that story as Wagner stages it, because he did not draw on one. By his own account, he worked from five distinct thirteenth century materials: the Poetic Edda and the Prose Edda compiled by Snorri Sturluson, the German Nibelungenlied, the Old Norse Volsunga Saga, and the Saga of Didrek of Bern. A Journey through NYC Religions traces an additional documented influence, Friedrich von der Hagen's 1815 German translation of the Volsunga Saga alongside the Brothers Grimm's collected heroic tales, both available to Wagner as he worked. He moved freely among all of these, taking a name here, a plot device there, and reassembling the result into a single continuous narrative none of his sources actually tells on its own.
That compositional method is why the Ring reads as one coherent modern drama rather than a staging of any single saga. Wagner's own ambition, a Gesamtkunstwerk uniting poetry, music, stage spectacle and drama into what he called a total work of art, required a single throughline his source material did not supply by itself.