The character "Margarida" is not referenced in official *Swan Lake* anime media. A non-human character named Margarita appears in the 1981 *Swan Lake* anime film as a squirrel companion, fulfilling minor plot functions without elaborated backstory or narrative development. Separately, unrelated individuals named Margarida—such as Portuguese animator Margarida Madeira and experimental filmmaker Margarida Sardinha—are documented in the provided materials but hold no connection to the *Swan Lake* narrative or its adaptations. No additional media or character-specific details are available.