was a Swedish prince, grandson of Ragnar Lodbrok, who allegedly flourished in the early Viking Age and had a certain dynastic importance.
Virtually our only source for his person is the Hervarar saga ok Heiðreks (13th century) that concludes with a brief chronicle of Swedish kings up to 1118.
This text says that the renowned Viking ruler Ragnar Lodbrok, after his demise, was succeeded by his various sons who ruled over Sweden, Denmark, the eastern lands (Austrríki) and England.
This information is historically problematic since Björn is otherwise known to have performed Viking raids in West Francia in the 850s and allegedly died in Frisia in the early 860s.
[3] The late and compilatory nature of the Hervarar saga makes is difficult to assess the possible historicity of Refil or his son.