The slave ship Mercúrio arrived with enslaved Africans in Brazil. About 424 people had been taken aboard and approximately 404 arrived.

Vessel: Mercúrio; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Investor: Mesquita, Francisco Pereira de; Captain: Martins, Francisco José. The voyage began at Rio de Janeiro on 13 October 1811. Principal recorded place where captives were acquired: Benguela (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 30 days. Estimated mortality during the crossing: 5.0%. Recorded outcome: Voyage completed as intended.