Maria Carlotta, also known as Queen Mary Charlotte in the anime Le Chevalier D'Eon, is the Queen of England and the wife of King George III. Her character is loosely based on the historical figure Charlotte of Mecklenburg-Strelitz. Within the story, she is depicted as a friend of Lia de Beaumont, the sister of the protagonist Charles d'Eon. This friendship is significant enough that Maria Carlotta is able to recognize Lia even when d'Eon is in disguise, indicating a close and perceptive bond. As a member of the English royal court, her role is that of a supporting figure who interacts with the main characters during their investigations in England. Her motivations are not extensively explored, but her loyalty to Lia suggests a sense of compassion and a willingness to aid those she trusts. The character does not display any supernatural abilities; her influence stems from her royal position and her personal connections. She appears only in a limited capacity, serving as a link between the French and English plots and helping to advance the narrative through her recognition of the disguised d'Eon.