The slave ship Adamastor arrived with enslaved Africans in Brazil. About 469 people had been taken aboard and approximately 454 arrived.

Vessel: Adamastor; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Ferreira, João Antônio; Investor: Ferreira, João Antônio; Captain: Santos, Antônio Teodoro dos. The voyage began at Rio de Janeiro on 5 August 1826. Principal recorded place where captives were acquired: Cabinda (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 37 days. Estimated mortality during the crossing: 3.0%. Recorded outcome: Voyage completed as intended.