The slave ship NS da Conceição e Sr dos Passos arrived with enslaved Africans in Brazil. About 449 people had been taken aboard and approximately 400 arrived.

Vessel: NS da Conceição e Sr dos Passos; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Vale, João Gomes; Investor: Vale, João Gomes; Captain: Santos, José Vitorino dos. The voyage began at Rio de Janeiro on 24 September 1821. 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: 41 days. Estimated mortality during the crossing: 11.0%. Recorded outcome: Voyage completed as intended.