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

Vessel: Diana; flag: Portugal / Brazil; rig: Sumaca. People recorded in connection with the voyage: Investor: Loureiro, Domingos Gomes Duarte; Captain: Rubim, Teodoro de Souza. The voyage began at Rio de Janeiro on 25 December 1814. Principal recorded place where captives were acquired: Cabinda (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 54 days. Recorded outcome: Voyage completed as intended.