Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
This is a cosmetic hat for Markus Mercenary class.
Marienburg has a poor reputation as a nest of pirates and ne'er do wells. A reputation well-earned. Who knows how many times this hat was stolen from previous owners.