|Location||São Paulo, Brazil|
|Province||Reino del Sur|
|Leader||Earl of Anhangabaú|
|Imperial Senate||6 Seats|
|Major Species|| Anhangabaun|
Anhangabaú is a city-state of the Esmeraldan Empire located in what was once São Paulo, Brazil . The city is the capital of Reino del Sur. It is sometimes referred to as Anhangabaú Prime to distinguish it from the Anhangabaun territories. It is the second most populous city-state in the world after Esmeralda Prime.
It was originally established by meta-human survivors of the Advenan War as a refuge. Those meta-humans came known to be known as Anhangabauns. It became part of the Esmeraldan Empire following the Esmeraldan-Anhangabaun War.
The city is subterranean and built four kilometers below the Earth's surface, just above the Earth's mantle, and exists entirely underground.
The city was founded by the survivors of the Advenan War in 4437. It was forced to join the Esmeraldan Empire in 4972 following the Esmeraldan-Anhangabaun War.