"The Tale of Styrbjörn, Champion of the Swedes" (Styrbjarnar þáttr Svíakappa) is an Icelandic short tale found in the Book of Flatey (c. 1390). It is quite short and likely a condensed abstract of a saga which is unfortunately lost. The same story is referred to in various other Icelandic sagas and is also told somewhat differently in Saxo Grammaticus' Danish History.
The Kingdom of Sweden is ruled jointly by the brothers Olaf and Erik. Olaf dies suddenly while his son Björn is still a child. When Björn is twelve years old, he asks his uncle Erik for his birthright – one half of the kingdom. But Erik puts him off, telling him to wait until he is sixteen.
But Björn, who is unusually strong and proud, gets in all kinds of fights and even kills one of Erik’s courtiers. For his aggressive spirit, he is nicknamed Styrbjörn, or Styrbjörn the Strong because of his strength. The Swedish farmers don’t like him and vote on an assembly that he is not fit to be king. To appease him and get him out of the kingdom, Erik gives him 60 warships so he can go on viking cruises.
Styrbjörn plunders up and down the shores of the Baltic and finally defeats even the mighty Jomsvikings, forcing them to accept him as their chief. Next, he invades Denmark, until the Danes under their king Harald Bluetooth meet his demands – one, to give him the princess Thyra in marriage, two, to assist him with their entire fleet in three great battles, and three, to let him hand-pick one man from Denmark that must accompany him on his next campaign. When they agree, Styrbjörn, of course, chooses the king, Harald.
Now finally feeling powerful enough, Styrbjörn sets out with his massive army to Sweden, ready to challenge his uncle and take the kingdom by force. Who will win?
Fun fact: The Battle of Uppsala is attested on a handful of 10th century runestones that were erected for fallen fighters.
"Tale of Styrbjörn" provides examples of the following tropes:
- Alliterative Name: Both the Norse original (Styrbjörn Sterki) and the English "Styrbjörn the Strong" alliterate.
- Battle Epic: About the Battle of Uppsala.
- Big Badass Battle Sequence: The Battle of Uppsala.
- Burning the Ships: Styrbjorn orders his fleet burnt after sailing up the Fyris River to Uppsala, "because he believed his men would not be so quick to flee if there was no way of getting away from there."
- Continuity Snarl: The Saga of the Jomsvikings makes no mention of Styrbjörn and his rule over Jomsborg at all.
- The Determinator: Styrbjorn will not resign his birthright, no matter what the costs.
- Half-Human Hybrid: From The Saga of Arrow-Odd it can be learned that a finngálkn is a monster with the upper body of a human and the feet and tail of a dragon.
- Identical Grandson: Inverted — Thorgnyr, Lawspeaker of Sweden, is implied to be the father or grandfather of another Thorgnyr the Lawspeaker in Snorri Sturluson's Heimskringla. Both Thorgnyrs are essentially the same character: An old and wise figure of authority that defends the rights of the farmers against the overbearance of the kings.
- Last Stand: Styrbjörn loses.
- Rule of Three: Only the third day of battle brings the decision.
- Supernatural Aid: King Erik receives the help of Odin.
- What Happened to the Mouse?: The story introduces three retainers of King Erik named Helgi, Thorgisl and Thorir, seemingly implying that they will become important later. They are never mentioned again. Probably they had a part in the writer's source which was cut for length.