Under water, where Grendel's mother lived.
he dies later on
Beowulf and Grendel's mother fought in her underwater lair at the bottom of a dark, eerie mere (a kind of lake). The battle took place in the depths of the water, adding to the suspense and danger of the encounter.
She gave Beowulf Grendels claw.
Beowulf followed Grendel's mother's tracks to her underwater lair after she attacked Heorot. He dove into the lake and ultimately battled and killed her with the help of a magical sword he found in her lair.
Yes, Beowulf does fight Grendels mother, they fight in her lair. He chops off her head.
The dragon is beowulfs song which most people don't' know cause it doesn't really tell you... and the golden horn Beowulf got from the king is a symbol. If Grendels mother has it he shall not attach but it soon comes back to it's owner and it comes back to Beowulf when he becomes king. So Beowulf and Grendels mother got to gather and he gave her another son, he just couldn't help it. so Beowulf really doesn't kill Grendels mother he just says he does.....
While Grendel's mother is hard for Beowulf to defeat, he IS able to use a sword, where as he has to battle Grendel bare handed.
Fighting Grendel, Grendels mother and the dragon once he returns home to Geatland and is crowned king.
Beowulf fights Grendel's mother, and kills her. He kills her with a sword that was made by giants, and he splits her into two.
Considering that Beowulf was able to defeat Grendel without any weapons or armor, Beowulf is much stronger. He ripped Grendel's arm off in the fight and Grendel fled.Also, Beowulf was very young at the time.
Beowulf does not fight Grendel's mother until after he has defeated Grendel.
Beowulf kills Grendel's mother's son, Grendel, before preparing to fight her.