How does Hrothgar know Beowulf’s dad?

How did Hrothgar come to know Beowulf's father? Beowulf's father found himself in a feud with a tribe known as the Wulfings after he killed one of its members. Hrothgar bailed Beowulf's father out by paying the Wulfings blood money.

Explanation:

is this Grendel's Battle or something idk what its called? if yes↓

Beowulf's father found himself in a feud with a tribe known as the Wulfings after he killed one of its members. Hrothgar bailed Beowulf's father out by paying the Wulfings blood money.

Explanation:

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