Theoderic the Great
The "Beowulf" poet is clearly referring to the legends about Theoderic the Great. The "Þiðrekssaga" tells that the warrior Heime ("Háma" in Old English) takes sides against Ermanaric ("Eormanric"), king of the Goths, and has to flee his kingdom after robbing him; later in life, Hama enters a monastery and gives them all his stolen treasure. However, this saga makes no mention of the great necklace.