Sigurd Snake-in-the-eye or Sigurd Ragnarsson/Aslaugsson was a semi-legendary Viking warrior and Danish king active from the mid to late 9th century. According to multiple saga sources and Scandinavian histories from the 12th century and later, he is one of the sons of the legendary Viking Ragnar Lodbrok and Áslaug. His historical prototype might have been the Danish King Sigfred who ruled briefly in the 870s. Norwegian kings' genealogies of the Middle Ages name him as an ancestor of Harald Fairhair and used his mother's supposed ancestry the Völsung to create an ancestry between Harald and his descendants and Odin.
Engraving from 1670
Ragnar Lodbrok, according to legends, was a Viking hero and a Swedish and Danish king.
Ragnar Lodbrok with sons Ivar and Ubba, 15th-century miniature in Harley MS 2278 folio 39r
A warrior with shaggy breeches, killing a beast, on one of the Torslunda plates. The man has been identified with Ragnar Lodbrok in an early Swedish version of the legend (Schück). More recently, it has been interpreted as showing a Germanic initiation ritual in which shaggy trousers played a role and which may subsequently have contributed to the legend of Ragnar Lodbrok.
The saga as published by Norstedts in a large-size illustrated version (1880).
Ragnar receives Kráka (Aslaug), as imagined by August Malmström.