The epic's similarity to the Irish folktale "The Hand and the Child" was noted in 1899 by Albert S. Cook, and others even earlier. In 1914, the Swedish folklorist Carl Wilhelm von Sydow made a strong argument for parallelism with "The Hand and the Child", because the folktale type demonstrated a "monstrous arm" motif that corresponded with Beowulf's wrenching off Grendel's arm. No such correspondence could be perceived in the Bear's Son Tale or in the Grettis saga. James Carney and Martin Puhvel agree with this "Hand and the Child" contextualisation. Puhvel supported the "Hand and the Child" theory through such motifs as (in Andersson's words) "the more powerful giant mother, the mysterious light in the cave, the melting of the sword in blood, the phenomenon of battle rage, swimming prowess, combat with water monsters, underwater adventures, and the bear-hug style of wrestling." In the Mabinogion, Teyrnon discovers the otherworldly boy child Pryderi, the principal character of the cycle, after cutting off the arm of a monstrous beast which is stealing foals from his stables. The medievalist R. Mark Scowcroft notes that the tearing off of the monster's arm without a weapon is found only in Beowulf and fifteen of the Irish variants of the tale; he identifies twelve parallels between the tale and Beowulf.
The epic's similarity to the Irish folktale "The Hand and the Child" was noted in 1899 by Albert S. Cook, and others even earlier. In 1914, the Swedish folklorist Carl Wilhelm von Sydow made a strong argument for parallelism with "The Hand and the Child", because the folktale type demonstrated a "monstrous arm" motif that corresponded with Beowulf's wrenching off Grendel's arm. No such correspondence could be perceived in the Bear's Son Tale or in the Grettis saga. James Carney and Martin Puhvel agree with this "Hand and the Child" contextualisation. Puhvel supported the "Hand and the Child" theory through such motifs as (in Andersson's words) "the more powerful giant mother, the mysterious light in the cave, the melting of the sword in blood, the phenomenon of battle rage, swimming prowess, combat with water monsters, underwater adventures, and the bear-hug style of wrestling." In the Mabinogion, Teyrnon discovers the otherworldly boy child Pryderi, the principal character of the cycle, after cutting off the arm of a monstrous beast which is stealing foals from his stables. The medievalist R. Mark Scowcroft notes that the tearing off of the monster's arm without a weapon is found only in Beowulf and fifteen of the Irish variants of the tale; he identifies twelve parallels between the tale and Beowulf.