Following the expulsion of French settlers from Rio de Janeiro in 1567 by
Estácio de Sá (the so-called France Antarctique episode), the Portuguese crown
began noticing that the bay of Rio de Janeiro would make a strategic scale for
the Atlantic route of ships from Portugal to its colonies in Africa and Asia,
as well an important advanced bridgehead for the defense of South Brazil. Fortresses
were built and an alliance was formed with nearby native Tupi-Guaraní tribes to
defend the settlement against other European invaders.
Araribóia, the chief of one of these allied tribes – the Temininós –
requested