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

Vessel: Constância; flag: Portugal / Brazil; rig: Barqua; estimated standardized tonnage: 414. People recorded in connection with the voyage: Investor: Souza, Jorge José de; Captain: Silveira, Teotônio Flávio da. The voyage began at Southeast Brazil, port unspecified on 20 November 1845. Principal recorded place where captives were acquired: West Central Africa and St Helena, port unspecified. Principal recorded disembarkation place: Rio de Janeiro. Recorded outcome: Arrived in Africa, subsequent fate unknown.