The slave ship Trinta de Março arrived with enslaved Africans in Brazil. About 566 people had been taken aboard and approximately 560 arrived.

Vessel: Trinta de Março; flag: Portugal / Brazil; rig: Galera. People recorded in connection with the voyage: Investor: Rocha, José Francisco Ferreira da; Captain: Silva, José Leite da. The voyage began at Rio de Janeiro on 15 April 1828. 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: 25 days. Estimated mortality during the crossing: 1.0%. Recorded outcome: Voyage completed as intended.