The slave ship NS da Conceição e Sr dos Passos arrived with enslaved Africans in Brazil. About 450 people had been taken aboard and approximately 424 arrived.

Vessel: NS da Conceição e Sr dos Passos; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Santos, Félix José dos; Investor: Santos, Félix José dos; Captain: Santos, José Vitorino dos. The voyage began at Rio de Janeiro on 4 September 1823. 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: 38 days. Estimated mortality during the crossing: 6.0%. Recorded outcome: Voyage completed as intended.