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

Vessel: S Marçal; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Investor: Companhia Geral do Grão Pará e Maranhão; Captain: Franco, Bernardo. The voyage began at Lisbon on 14 January 1764. Principal recorded place where captives were acquired: Bissau (Senegambia and offshore Atlantic). Principal recorded disembarkation place: Maranhão. Estimated mortality during the crossing: 3.0%. Recorded outcome: Voyage completed as intended.