From Bulbapedia, the community-driven Pokémon encyclopedia.
Cameran Palace (Japanese: オルドラン城 Oldoran Castle) is an anime-exclusive location in Kanto, located north of the town of Rota, on an island in the center of a lake. It is connected to the town by a long bridge. At the back of the castle is a cable car track, which stops at the other side of the lake. Besides the castle, there is a large stadium for Pokémon battles, which is used for the battle tournament of Rota's annual festival.
It is where Queen Ilene and her ancestor, Queen Rin, resided in Lucario and the Mystery of Mew. Lucario had once lived in the castle before he was sealed away in the staff, training under Sir Aaron to master Aura. When he was awakened by Ash Ketchum, he did not realize that Cameran had changed over time while he was gone. According to official maps on the movie, Cameran Palace and the town of Rota are located north of Mt. Silver, and is just northwest of Mt. Moon.
Cameran Palace is based on the Neuschwanstein Castle in Germany.
|| オルドラン城 Oldoran Castle
|| Possibly オルドランド old land.
|| Cameran Palace
|| Possibly from Camelot.
| Chinese (Mandarin)
|| 歐魯德朗城 Ōulǔdélǎng Castle
|| Transliteration of its Japanese name. May also be from 德國 Déguó (Germany) and 歐洲 Ōuzhōu (Europe).