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Lucario Kingdom (Japanese: ルカリオの王国 Lucario Kingdom) first appeared in Pokémon Ranger and the Kidnapped Riolu! (Part 1), where it is mentioned that the Aura Sphere Riolu hails from it using its powers as the guardian. It may be located somewhere in between Mt. Coronet and Veilstone City.
Pokémon seen in Lucario Kingdom