Conversation so far:
Where is beowolf from?
Beowulf comes from Geatland (= Gotaland.
What does Beowolf do?
the hero Beowulf aids Eadgils in Eadgils' war against Onela.
What does beowulf mean?
Beowulf (lit.
"bee-wolf", a kenning for "bear".
Do Beowulf and Bjarki have anything in common?
both the names Beowulf (lit.
"bee-wolf", a kenning for "bear") and Bjarki are associated with bears.
What else is similar?
Bodvar Bjarki aids Adils in defeating Adils' uncle Ali, in the Battle on the Ice of Lake Vanern.
In Beowulf, the hero Beowulf aids Eadgils in Eadgils' war against Onela.
Are there any other interesting aspects about this article?
As far as this Swedish adventure is concerned, Beowulf and Bodvar Bjarki are one and the same.

Question: Do they defeat anyone?
Self-contained rewrite: Do Beowulf and Bjarki defeat anyone?