In the Skáldskaparmál section of the Prose Edda, Snorri Sturluson quotes a poem by the skald Snæbjörn, which could be considerably older than the version found in Gesta Danorumand Chronicon lethrense. The mysterious lines are quoted in Skáldskaparmál as an example of Amlóði’s churn as a kenning for the sea:

Prose translation:

It is said, sang Snæbjörn, that far out, off yonder headland, the Nine Maids of the Island Mill violently stir the host-cruel skerry-quern — they who in ages past ground Amlóði’s meal. The good chieftain furrows the hull’s lair with his ship’s beaked prow. Here the sea is called Amloði’s Mill.

The other Scandinavian versions of the tale are: the Hrólfs saga kraka, where the brothers Helgi (known as Halga in Beowulf) and Hroar (Hroðgar) take the place of the hero; the tale of Harald and Halfdan, as related in the 7th book of Saxo Grammaticus; the modern Icelandic Ambale’s Saga, a romantic tale the earliest manuscript of which dates from the 17th century; and the folk-tale of Brjam which was put in writing in 1707. Helgi and Hroar, like Harald and Halfdan, avenge their father’s death on their uncle by burning him in his palace. Harald and Halfdan escape after their father’s death by being brought up, with dogs’ names, in a hollow oak, and subsequently by feigned madness; and in the case of the other brothers there are traces of a similar motive, since the boys are called by dogs’ names. The methods of Hamlet’s madness, as related by Saxo, seem to point to cynanthropy. In the Ambale’s Saga, which perhaps is collateral to, rather than derived from, Saxo’s version, there are, besides romantic additions, some traits which point to an earlier version of the tale.

Hrólfr Kraki fighting alongside Bödvar Bjarki, who is in his bear fetch, in their last stand