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

Vessel: Diligente; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Investor: Lopes, Joaquim José; Captain: Magalhães, Francisco de Melo de. The voyage began at Bahia, place unspecified on 31 May 1815. 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: 31 days. Recorded outcome: Voyage completed as intended.