Heoroweard [SEP] present in work
Heoroweard
Heoroweard is a character who appears in "Beowulf" and also in Norse legends, where he is named "Hjörvarðr" or "Hiartuar". If he existed in real life, his name would have been Proto-Norse *"Heruwarduz". 
In the Norse sources, Hereoweard rebelled against Hroðulf/Hrólf Kraki and killed him, but otherwise the sources vary greatly. This is an account of the differences:
In the paraphrase of "Bjarkamál" in the "Gesta Danorum" of Saxo Grammaticus,
kings was no longer known.
In Arngrímur and the "Chronicon Lethrense", Heoroweard is the son-in-law of Adils, married to his daughter Skuld, whereas Hrólf Kraki's saga makes him the son-in-law of Helgi (according to Olrik, he could not be married to his own cousin). The account shows that Heoroweard had close connection with Adils and Olrik suggests that the real reason behind Hrólfs voyage to Uppsala was Adils' support of Heoroweard.
However, according to Snorri,