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

Vessel: S Antônio Postilhão; flag: Portugal / Brazil; rig: Curveta. People recorded in connection with the voyage: Captain: Martins, Caetano José; Captain: Hidalgo, Joaquim José. The voyage began at Rio de Janeiro on 22 January 1805. Principal recorded place where captives were acquired: Benguela (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Estimated mortality during the crossing: 17.0%. Recorded outcome: Voyage completed as intended.