A Marchioness (Japanese: マーショネスMarchioness) is a type of Pokémon Trainer that debuted in Generation VI. This Trainer class is a title of nobility, granted in the Battle Chateau, and Trainers with this class only appear there. Marchioness is the fourth rank of nobility for females, ranking above Countess and below Duchess. Its counterpart for males is Marquis.
The female player character may earn the title of Marchioness by winning enough battles in the Battle Chateau. The female Gym Leaders of Kalos also hold the rank of Marchioness in the Battle Chateau. All opponent Marchionesses use parties of two Pokémon, and all who are not Gym Leaders have Pokémon at level 40 (if no Writ of Challenge is active), while Gym Leaders' Pokémon have higher levels.