A grove of Fetters is mentioned in the Eddic poem "Helgakviða Hundingsbana II": Helgi obtained Sigrún, and they had sons. Helgi lived not to be old. Dag, the son of Högni, sacrificed to Odin, for vengeance for his father. Odin lent Dag his spear. Dag met with his relation Helgi in a place called Fiöturlund, and pierced him through with his spear. Helgi fell there, but Dag rode to the mountains and told Sigrún what had taken place. ― Helgakviða Hundingsbana II, Thorpe's translation