hi! there's room for more info, but you can get started on these previous posts

• How prevalent were "champions" in armies in ancient to medieval times?

• Are there any cases where two leading individuals from opposing armies fought each other to determine the outcome of a war or battle?

• Did champions of opposing armies do battle ever?

• Is there any plausible evidence for occurrences of single combat by "champions" or highly esteemed soldiers in the field of combat?