The slave ship Quatro Amigos arrived with enslaved Africans in Brazil. About 445 people had been taken aboard and approximately 436 arrived.

Vessel: Quatro Amigos; flag: Portugal / Brazil; rig: Brig. People recorded in connection with the voyage: Captain: Ferreira, João Antônio; Investor: Ferreira, João Antônio; Captain: Paiva, João Martins de. The voyage began at Southeast Brazil, port unspecified. Principal recorded place where captives were acquired: Benguela (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 28 days. Estimated mortality during the crossing: 2.0%.