What did Beowulf do with the treasure that Hrothgar gave him?

After slaying Grendal's mother and being rewarded by Hrothgar, Beowulf announced that he was returning home. With the assistance of Hrothgar's men, he loaded the treasures on his ship and sailed with them back to his homeland. In at least one instance he retained the treasures for quite some time; when he fought the dragon some 50 years later, he wielded the sWord Nægling, an heirloom from Hrothgar's family given to him after Beowulf killed Grendal's mother.