You know the type; young thrill seekers accepting quests, roving the lands, seeking wealth, glory, and fame, saving damsels in distress, searching for hidden treasures, all that jazz.
Without wanting to discourage further answers, you may want to check out:
/u/Rittermeister in In games and books there are always "adventurers" who do odd jobs and explore for a living. Did something like this ever actually exist in medieval times?.
/u/restricteddata in Did 'brave adventurers' actually exist during the middle ages, or is it just a videogame trope?
/u/AncientHistory in Was "adventurer" (in the Dungeons and Dragons sense) ever an actual profession in medieval Europe?