Lucinda does not appear in any official *Pokémon Diamond & Pearl* anime series, films, OVAs, or spin-offs. Official sources discussing Sinnoh region characters like Dawn, Lucas, and Cynthia contain no references to her. The sole mention of Lucinda originates from a non-canonical, fan-created wiki, where she is described as the CEO of a cosmetics company and the sister of a character named Thea. This portrayal exists outside official *Pokémon* storylines, seasons, and adaptations. No further details exist.