Hagen (German form) or Högni (Old Norse Hǫgni, often anglicized as Hogni, Old English Hagena, Latin Hagano) is a Burgundian warrior in Germanic heroic legend about the Burgundian kingdom at Worms. Hagen is often identified as a brother or half-brother of King Gunther (Old Norse Gunnarr). In the Nibelungenlied he is nicknamed "from Tronje".
Of the main manuscripts of the Nibelungenlied, the chief representatives of versions B and C use the spelling "Tronege": "from Tronege Hagene", "Hagen of Tronege", "geborn of Tronege", "helt of Tronege". The A version usually writes "Trony" (also "Troni" and "Tronie"). "Tronje" is the appropriate modern German form. In the B and C versions, the name is in the dative case, with the nominative being "Troneg"; "Tronje", although common, is therefore a mistake.
All attempts to interpret Hagen's name or home are highly speculative. Although the Nibelungenlied has a historic center, it was written down only centuries later, in 1200, and therefore incorporated the author's Medieval knowledge and intentions. There are suggestions that the epithet refers to more or less similar-sounding place names. However, names that have only a phonetic similarity but no meaningful link with the legend are rejected by scholars, since it is very likely that such connections are random and add nothing to the interpretation of the character. It is believed that the poet of the Nibelungenlied accepted Tronje as a real place name in the Burgundian kingdom; but it is questionable that he himself knew its exact location, since the story's many geographical mistakes suggest that his knowledge of the area around Worms was not particularly good.
Nevertheless, a link to Hagen has been discussed regarding the following places:
The suffix "of Tronje" could signify a derivation from the Greek "Troy", since it was fashionable in late antiquity and early medieval Europe to ascribe such ancestors to oneself. With this ascription, people could also connect themselves to the ancient Romans.