The slave ship Leopoldina arrived with enslaved Africans in Brazil. About 481 people had been taken aboard and approximately 448 arrived.

Vessel: Leopoldina; flag: Portugal / Brazil; rig: Galera. People recorded in connection with the voyage: Investor: Vieira, José Inácio Vaz; Captain: Menezes, Antônio Joaquim de. The voyage began at Rio de Janeiro on 1821. 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: 60 days. Estimated mortality during the crossing: 7.0%. Recorded outcome: Voyage completed as intended.