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

Vessel: S Marcos; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Andrade, Inocêncio Matoso de; Investor: Andrade, Inocêncio Matoso de. The voyage began at Pernambuco, place unspecified on 12 March 1819. Principal recorded place where captives were acquired: Benguela (West Central Africa and St Helena). Principal recorded disembarkation place: Pernambuco, place unspecified. Recorded outcome: Left home port, no further record.