The slave ship Trinta de Março left the African coast carrying enslaved Africans toward Brazil. About 602 people had been taken aboard.

Vessel: Trinta de Março; flag: Portugal / Brazil; rig: Galera. People recorded in connection with the voyage: Captain: Pinheiro, Luís José Soares; Investor: Rocha, Joaquim Ferreira de. The voyage began at Southeast Brazil, port unspecified. Principal recorded place where captives were acquired: Quilimane (East Africa and Indian Ocean islands). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 45 days. Estimated mortality during the crossing: 6.0%.