The slave ship Conceição de Maria Santíssima departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Conceição de Maria Santíssima; flag: Portugal / Brazil; rig: Schooner. People recorded in connection with the voyage: Captain: Sacramento, Manoel Pires do; Investor: Sacramento, Manoel Pires do; Captain: Gastão, José Ribeiro de Assa. The voyage began at Pernambuco, place unspecified on 18 April 1815. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Pernambuco, place unspecified. Recorded outcome: Left home port, no further record.