Wermund or Garmund is an ancestor of the Mercian royal family, a son of Wihtlaeg and father of Offa. Mythology claims him to be a grandson of Woden, but the Danish histories written by Saxo Grammaticus disagree with this concept.
He appears to have reigned in Angel, and his story is preserved by certain Danish historians, especially Saxo Grammaticus. According to these traditions, his reign was long and happy, though its prosperity was eventually marred by the raids of a warlike king named Athislus, who slew Frowinus, the governor of Schleswig, in battle. Frowinus's death was avenged by his two sons, Keto and Wigo, but their conduct in fighting together against a single man was thought to constitute a national disgrace, which was only reconciled by the subsequent single combat of Offa.
It has been suggested that Athislus, though called king of the Swedes by Saxo, was really identical with the Eadgils, king of the Myrgings, mentioned in Widsith. Though due to Saxo writing his work centuries later it could be fictitious, Frowinus and Wigo are doubtless to be identified with the Freawine and Wig who figure among the ancestors of the kings of Wessex.
He is mentioned in lines 1958-1963 of the Anglo-Saxon epic Beowulf as Garmund the father of Offa of Angel and grandfather of Eomer.
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