The slave ship Leão arrived with enslaved Africans in Brazil. About 220 people had been taken aboard and approximately 202 arrived.

Vessel: Leão; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Santos, Joaquim Pereira dos; Captain: Silva, Carlos Alberto da. The voyage began at Rio de Janeiro on 1810. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Rio de Janeiro. Estimated mortality during the crossing: 8.0%. Recorded outcome: Voyage completed as intended.