The slave ship NS das Mercês e Sr dos Milagres arrived with enslaved Africans in Brazil. About 438 people had been taken aboard and approximately 406 arrived.

Vessel: NS das Mercês e Sr dos Milagres; flag: Portugal / Brazil; rig: Brig. People recorded in connection with the voyage: Investor: Silva, Manoel Marques da; Investor: Silva, Antônio Marques da. The voyage began at Bahia, place unspecified on 7 May 1798. Principal recorded place where captives were acquired: Costa da Mina, place unspecified (Bight of Benin). Principal recorded disembarkation place: Bahia, place unspecified. Recorded duration of the captives' Atlantic crossing: 40 days. Recorded outcome: Voyage completed as intended.