Where Beowulf kills Grendel?

Answer 1

Beowulf rips off Grendel's arm in herot hall but Grendel actually dies in the marshes where he lives from bleeding to death.

Answer 2

Beowulf kills Grendel in Heorot, the mead hall of King Hrothgar in Denmark. Grendel had been terrorizing the hall for years until Beowulf arrives to challenge and defeat him. The climactic battle takes place during the night while the warriors are asleep.

Answer 3

Beowulf attacks Grendel in the meadhall at herot and tears off one of his arms. When he does this, Grendel runs back to his home in the swamp where he belongs then he waits to die.