The slave ship União Feliz departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: União Feliz; flag: Portugal / Brazil; rig: Patacho. People recorded in connection with the voyage: Investor: Vieira, José Inácio Vaz; Captain: Vieira, Joaquim José. The voyage began at Rio de Janeiro on 31 March 1826. Principal recorded place where captives were acquired: Ambriz (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: 1.0%. Recorded outcome: Voyage completed as intended.