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

Vessel: General D Antônio; flag: Portugal / Brazil; rig: Brig. People recorded in connection with the voyage: Investor: Pinto, Antônio José; Captain: Coelho, João Antônio; Investor: Coelho, João Antônio. The voyage began at Lisbon on 9 October 1821. Principal recorded place where captives were acquired: Bissau (Senegambia and offshore Atlantic). Principal recorded disembarkation place: Maranhão. Estimated mortality during the crossing: 9.0%. Recorded outcome: Voyage completed as intended.