According to Hervarar saga
was a son of the Swedish
king Björn Ironside
and the brother of its next king Erik Björnsson
. He appears in Hervarar saga
and in Nafnaþulur
. According to these sources, Refil was a great warlord and a sea-king
who would have lived in the early 9th century
It was Refil's son Erik Refilsson who inherited the Swedish throne upon Erik Björnsson's death, which suggests that Refil may not have been alive at the time.
According to Skáldskaparmál, Refil is also the name of the sword of Regin, brother of Fafnir.