Þóra borgarhjǫrtr

Thora Borgarhjört (Old Norse: Þóra borgarhjǫrtr, which literally means "Thora Town-Hart"), is a mythical character in the Norse sagas – the wife of Ragnar Loðbrók, who kills a serpent to win her hand in marriage.

Her father gave her a small lindworm that grew into a large serpent and encircled the bower.

Her father promised Thora's hand in marriage to any man who could slay the serpent.

He went to the bower, wearing breeches that he had treated with tar and sand to protect his legs from the serpent's poison.

Ragnar later married Aslaug (Aslög), the daughter of Sigurd and Brynhildr.