A Norse heroic legend

Sigurd and Fafnir Story Explained

Before Sigurd ever raises his sword, the gold has already poisoned a family. Fafnir has killed his father and become the dragon that guards the hoard. Regin sends Sigurd toward the monster, but his advice hides a second betrayal.

Main heroSigurd Fafnisbane

Dragon's pathGnitaheath

Last updated2026-05-09

Told in the Poetic Edda and the Völsunga Saga, the episode connects a dragon fight with inheritance, greed, warning, and the larger tragedy of the Volsungs.

Short version Story Main figures Timeline Symbols Different readings Ramsund carving Misconceptions Similar figures Sources FAQ

Short version

What Happens in the Sigurd and Fafnir Story?

Fafnir kills his father, Hreithmar, to keep Andvari's cursed gold. He withholds the treasure from his brother Regin and becomes a dragon, lying over the hoard at Gnitaheath. Regin later raises and trains Sigurd, then urges him to kill Fafnir with the sword Gram.

Sigurd hides beneath the dragon's path and strikes upward as Fafnir passes over him. After the killing, Sigurd roasts the dragon's heart for Regin, burns his finger, tastes the blood, and suddenly understands birds. They warn that Regin plans to murder him for the treasure. Sigurd kills Regin, takes the hoard, and rides away, but the curse travels with the gold.

Story

The Main Events

The treasure is cursed before Sigurd arrives

The background begins with Odin, Hoenir, and Loki paying weregild for Otr's death. The payment includes Andvari's gold, and the treasure enters the story already marked by a curse.

Fafnir kills Hreithmar and takes the gold

Fafnir and Regin ask their father Hreithmar for a share of the compensation. When Hreithmar refuses, Fafnir kills him, keeps the hoard, and eventually becomes a dragon guarding it.

Regin trains Sigurd and reforges Gram

Regin fosters Sigurd and urges him toward the treasure. In the saga tradition, the broken sword of Sigmund is reforged into Gram, a weapon sharp enough to prove Sigurd's readiness.

Sigurd goes to Gnitaheath

At the dragon's path, Sigurd digs a trench or pit. Odin appears in disguise in some tellings and advises him to cut channels so the dragon's blood will not drown him.

Fafnir is struck from below

When Fafnir crawls over the hidden place, Sigurd thrusts the sword into him. Fafnir dies speaking, warning Sigurd that the gold brings danger rather than simple glory.

The dragon heart gives bird speech

Regin asks Sigurd to roast Fafnir's heart. Sigurd burns his finger, puts it to his mouth, tastes the dragon's blood, and suddenly understands birds warning that Regin means to betray him.

Sigurd kills Regin and takes the hoard

The warning changes the story from monster-slaying to betrayal. Sigurd kills Regin, loads the treasure on Grani, and rides onward into the wider Volsung cycle.

Main figures

Who Is in the Story?

Sigurd / Sigurth

The young Volsung hero and dragon slayer. Old Norse and older English translations often write his name as Sigurth, while later German tradition knows a related hero as Siegfried.

Fafnir

Hreithmar's son and Regin's brother. His greed over the cursed treasure leads him to kill his father, withhold the inheritance, and guard the hoard in dragon form.

Regin

A smith, fosterer, and plotter. He trains Sigurd and wants Fafnir killed, but the bird warning exposes that Regin also plans to kill Sigurd and take the treasure.

Hreithmar

Father of Fafnir, Regin, and Otr. He accepts the gods' compensation for Otr's death, then becomes the first family victim of the cursed gold.

Otr

Fafnir and Regin's brother. Loki kills him while he is in otter form, setting off the compensation demand that brings Andvari's gold into the family.

Andvari

The dwarf connected with the gold and ring. His curse turns treasure into a chain of kin-slaying, greed, and disaster.

Odin

A disguised helper in the dragon episode and a wider presence in Sigurd's family story. His advice helps Sigurd survive the dragon's blood.

Grani

Sigurd's horse, associated with Odin's horse line in the tradition. After the killing, Grani carries the treasure away.

Sigrdrifa / Brynhild

The valkyrie figure Sigurd rides toward after the dragon episode in the Eddic sequence, making the Fafnir story a gateway into a larger heroic tragedy.

Timeline

How the Curse Moves

Otr is killed

Loki kills Otr, whose family demands a compensation payment large enough to cover the otter skin with gold.

Andvari's gold is taken

Loki obtains the treasure from Andvari. The ring and hoard are cursed, so the compensation carries future violence inside it.

Fafnir murders Hreithmar

Fafnir kills his father to keep the gold and refuses Regin's share. The family conflict turns inheritance into bloodshed.

Regin raises Sigurd

Regin fosters the young hero, teaches him, and steers him toward killing Fafnir.

Gram is forged

The sword Gram becomes Sigurd's dragon weapon. The saga version links it with Sigmund's broken sword and Odin's earlier gift.

Fafnir dies at Gnitaheath

Sigurd hides below the dragon's path, strikes upward, and speaks with Fafnir as the dragon dies.

The birds reveal Regin's plan

After tasting dragon blood from the roasting heart, Sigurd understands birds who warn him against Regin.

The treasure leaves with Sigurd

Sigurd kills Regin, takes the gold, and rides on. The curse is not solved; it follows the hero into later Volsung and Nibelung tragedy.

Symbols

What the Story Means

Dragon as greed made visible

Fafnir is not just a creature sitting on treasure. He is a family member transformed by possession, fear, and refusal to share inheritance.

Heroism is morally unstable

Sigurd's courage is real, but the victory puts him inside a cursed economy of violence. Killing the dragon does not purify the gold.

Knowledge comes through danger

The dragon heart and bird speech make wisdom bodily and risky. Sigurd learns truth because he is close enough to be burned.

Fosterage and betrayal are linked

Regin is both teacher and would-be killer. The story makes mentorship uneasy: skill can be given for selfish reasons.

The treasure is a chain, not a prize

Readers often remember the hoard as reward. The older story treats it as a curse that moves from hand to hand and damages every holder.

Different readings

How the Story Changes Across Traditions

Poetic Edda

Reginsmol, Fafnismol, and Sigrdrifumol preserve a poetic and prose-linked sequence: cursed gold, Sigurd's dragon killing, bird speech, Regin's death, and the ride toward Sigrdrifa.

Völsunga Saga

The saga arranges heroic poems and prose narrative into a fuller Volsung family cycle, giving readers a more continuous story of Sigurd's ancestry, sword, treasure, love, and death.

Ramsund carving

The 11th-century Swedish carving shows the legend visually: Sigurd killing Fafnir, roasting the heart, hearing birds, killing Regin, and Grani carrying treasure.

German Siegfried tradition

Siegfried is related but not identical. The Nibelungenlied and later reception reshape names, motives, geography, and emphasis, so they should not be merged carelessly with Old Norse Sigurd.

Carved in stone

Why the Ramsund Carving Matters

The Ramsund carving in Sweden shows how recognizable this legend already was in the Viking Age. The stone gathers the dragon killing, the roasting of the heart, the listening birds, Regin's death, and Grani carrying the treasure into one flowing visual sequence.

That matters because Sigurd was not only a manuscript hero. His story could live on stone monuments, in memorial settings, and in local landscapes where legend and public memory met.

Misconceptions

Common Mistakes About Sigurd and Fafnir

Fafnir is just a fantasy dragon.

Fafnir matters because he was once part of a family. His dragon form grows out of kin-killing, treasure, and curse, not only monster spectacle.

Sigurd and Siegfried are exactly the same.

They are related figures in Germanic heroic tradition, but Old Norse Sigurd and continental Siegfried are shaped by different texts and story priorities.

The treasure is a happy reward.

The hoard is dangerous. Fafnir, Regin, Sigurd, and later figures are pulled into violence around it.

Regin is a loyal mentor.

Regin teaches Sigurd and gives him a mission, but his motive is inheritance and revenge. The bird episode exposes his planned betrayal.

The story ends when the dragon dies.

The dragon slaying is only one turn in a larger Volsung tragedy. The curse keeps moving after Sigurd rides away.

Younger readers

Can This Story Be Told Gently?

For a gentler retelling, keep the focus on the cursed treasure, the dragon fight, the warning birds, and the danger of greed.
The darker details can be softened without losing the point: Fafnir and Regin are not random villains, but brothers trapped in a family conflict over gold.
With older readers, the story opens a useful comparison between Old Norse Sigurd and the related German hero Siegfried.

Sources

Sources and Further Reading

Poetic Edda - Reginsmol

Introduces Regin, Andvari's gold, Hreithmar, Fafnir, Gram, Odin's advice, and the events that lead Sigurd toward the dragon.

Poetic Edda - Fafnismol

Tells the killing at Gnitaheath, Fafnir's dying warning, the roasting of the dragon heart, the birds' speech, and Regin's betrayal.

Poetic Edda - Sigrdrifumol

Continues Sigurd's journey after the hoard, as he rides toward the shield wall and wakes the valkyrie Sigrdrifa.

Völsunga Saga - chapters 18-19

Gives a continuous prose version of the episode around Gram, Fafnir, Regin, and the cursed treasure.

Britannica - Fafnir

A concise reference overview of Fafnir, the cursed treasure, Regin's role, and the bird-warning episode.

Britannica - Völsunga saga

Background on the Icelandic legendary saga that gathers older heroic material into a larger Volsung cycle.

World History Encyclopedia - Ramsund Runestone

Shows the 11th-century Ramsund carving, where scenes from Sigurd's dragon-slaying legend are carved into stone.

Runinskrifter.net - Sö 101

A runic and heritage record for the Ramsund carving, dated to the Viking Age and linked with Sigurd Fafnesbane imagery.

FAQ

Sigurd and Fafnir Questions

What is the Sigurd and Fafnir story about?

The Sigurd and Fafnir story is a Norse heroic legend about cursed treasure, family betrayal, and a dragon slaying. Fafnir kills his father for Andvari's gold and becomes a dragon; Regin trains Sigurd to kill him; Sigurd learns from birds that Regin plans betrayal, kills Regin, and carries the hoard away.

Why did Fafnir become a dragon?

In the Völsunga and Eddic tradition, Fafnir's dragon form is tied to greed and guarding the cursed hoard. He kills Hreithmar for the gold, refuses Regin's share, and becomes the creature who lies over the treasure.

How does Sigurd kill Fafnir?

Sigurd hides in a trench or pit on Fafnir's path at Gnitaheath and stabs upward with Gram as the dragon passes over him. Some versions include Odin's advice to dig extra channels so the dragon's blood will not overwhelm him.

Why can Sigurd understand birds?

After killing Fafnir, Sigurd roasts the dragon's heart for Regin. He burns his finger, puts it in his mouth, tastes the dragon blood, and suddenly understands birds who warn that Regin intends to kill him.

Are Sigurd and Siegfried the same hero?

They are closely related figures in Germanic heroic legend, but they are not identical across every text. Old Norse Sigurd appears in the Poetic Edda and Völsunga Saga, while Siegfried belongs especially to continental German tradition such as the Nibelungenlied.

Is the Sigurd and Fafnir story suitable for children?

Yes, with care. Younger readers can follow the broad pattern of greed, courage, warning, and betrayal, while graphic details about murder, blood, the dragon heart, and later tragic events are better softened or saved for older readers.