The slave ship Paquete do Rio arrived with enslaved Africans in Brazil. About 470 people had been taken aboard and approximately 460 arrived.

Vessel: Paquete do Rio; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Blanchart, Manoel Pereira de Souza; Captain: Pinto, Manoel Guedes; Investor: Pinto, Manoel Guedes. The voyage began at Rio de Janeiro on 17 June 1821. 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: 32 days. Estimated mortality during the crossing: 2.0%. Recorded outcome: Voyage completed as intended.