Located in the center of the capital city of Poseidonis, the royal palace was the tallest and most extravagant building in the entire city. This was the home renigning monarch, his family, entourage and council elders. Over the years, the palace has known many rulers including the King Trevis, the interim ruler King Pletus, the corrupt King Thesily, King Orin and Lord Vulko. During this time, Mera, driven insane by the death of her son, fought against her husband Aquaman and was nearly killed in the throne room when Aquaman accidentally impaled her upon an upturned piece of metal.