Campo de Marte Airport is the first airport built in São Paulo, Brazil, opened in 1929. It is named after Champ de Mars, in Paris, which in turn got its name from Campus Martius, in Rome.
It is operated by Infraero.
Wikipedia https://en.wikipedia.org/wiki/Campo_de_Marte_Airport
Address São Paulo, Brazil
Coordinates -23°30'36.726" N -46°38'17.649" E