What is "heremod"

Heremod ( Proto-Norse: *Harimōdaz 1, Latin form: Heremodius) is a legendary Danish king and a legendary king of the Angles who would have lived in the 2nd century and known through a short account of his exile in the Old English poem Beowulf and from appearances in some genealogies as the father of Scyld. He may be the same as one of the personages named Hermóðr in Old Norse sources. Heremod may also be identical to Lother ( Latin Lotherus) in Saxo Grammaticus' Gesta Danorum (Book 1) or the same history may have been applied to two originally separate figures.