The slave ship S Sebastião departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: S Sebastião; flag: Portugal / Brazil; rig: Galera. People recorded in connection with the voyage: Investor: Companhia Geral do Grão Pará e Maranhão; Captain: Santos, Leonardo José dos. The voyage began at Lisbon on 3 April 1770. Principal recorded place where captives were acquired: Bissau (Senegambia and offshore Atlantic). Principal recorded disembarkation place: Pará. Estimated mortality during the crossing: 11.0%. Recorded outcome: Voyage completed as intended.