I believe this name belongs in the category of "Carolingian Cycle", as the 13th-century epic poem "Huon de Bordeaux" is a chanson de geste that relates to the Matter of France:• https://en.wikipedia.org/wiki/Huon_of_Bordeaux (in English; here the character's name is spelled as Oberon, but the French version of the article primarily uses Auberon) • https://en.wikipedia.org/wiki/Oberon (in English; also see the French version, which uses the spellings Aubéron and Obéron)
• https://en.wikipedia.org/wiki/Huon_of_Bordeaux (in English; here the character's name is spelled as Oberon, but the French version of the article primarily uses Auberon)
• https://en.wikipedia.org/wiki/Oberon (in English; also see the French version, which uses the spellings Aubéron and Obéron)