Beowulf: The Monsters and the Critics most important article ever written about the poem. Scholars of Anglo-Saxon agree that the work was influential, transforming the study of "Beowulf". J. R. R. Tolkien's essay ""Beowulf": The Monsters and the Critics", initially delivered as a lecture in 1936, is regarded as a formative work in modern "Beowulf" studies. In it, Tolkien speaks against critics who play down the monsters in the poem, namely Grendel, Grendel's mother, and the dragon, in favour of using "Beowulf" solely as a source for Anglo-Saxon history. Tolkien argues that rather than being merely extraneous, these elements are key to the narrative and should
Hrólfs saga kraka elaborates on the same matter as several other sagas, and chronicles, in Scandinavian tradition, and also in the Anglo-Saxon poems "Beowulf" and "Widsith". In "Beowulf" and "Widsith", many of the same characters appear in their corresponding Old English forms: Hrólfr Kraki appears as Hroðulf, his father Helgi as Halga, his uncle Hróarr as Hroðgar, his grandfather Halfdan as Healfdene and their clan, the Skjöldungs, as the Scyldings. Moreover, some of their enemies also appear: Fróðo as Froda and king Aðils of Sweden as the Swedish king Eadgils. In "Hrólfr Kraki's saga", Halfdan (Healfdene) had three children, the sons Helgi (Halga)