Banco do Brasil S.A. (English: Bank of Brazil) is a Brazilian financial services company headquartered in Brasília, Brazil. The oldest bank in Brazil, and one of the oldest banks in continuous operation in the world, it was founded by John VI, King of Portugal, in 1808.Banco do Brasil was founded in 1808 by then prince regent John (later King John VI of Portugal) to finance the kingdom's public debt when he moved from Europe to Brazil. "As a mixed institution under state control, the Banco do Brasil served as a commercial bank, the government's fiscal agent, and Brazil's first bank of issue.