The slave ship Dois Irmãos departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Dois Irmãos; flag: Portugal / Brazil; rig: Schooner. People recorded in connection with the voyage: Investor: Castro, Antonio José de; Captain: Rixo, João Felipe; Captain: Lemos, Francisco Antônio de. The voyage began at Rio de Janeiro on 13 August 1827. Principal recorded place where captives were acquired: Luanda (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 34 days. Estimated mortality during the crossing: 12.0%. Recorded outcome: Voyage completed as intended.