The slave ship Triunfo da União departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Triunfo da União; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Investor: Chaves, Domingos Pires dos Santos; Captain: Pinto, Manoel José. The voyage began at Bahia, place unspecified on 12 March 1811. Principal recorded place where captives were acquired: Costa da Mina, place unspecified (Bight of Benin). Principal recorded disembarkation place: Bahia, place unspecified. Recorded duration of the captives' Atlantic crossing: 36 days. Estimated mortality during the crossing: 9.0%. Recorded outcome: Voyage completed as intended.