Grendel's one of three antagonists, along with Grendel's mother and the dragon, in the Anglo-Saxon epic poem Beowulf (AD 700–1000). In the poem, Grendel's feared by all but Beowulf. Story The poem Beowulf's contained in the Nowell Codex. As noted in lines 106–114 and lines 1260–1267 of Beowulf, Grendel's mother and Grendel are described as descendants of the Biblical Cain. Beowulf leaves Geatland in order to find and destroy Grendel, who's been attacking Heorot, killing and can… (More on Grendel)