The slave ship Vicomtesse de Castellane departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Haiti.

Vessel: Vicomtesse de Castellane; flag: France; estimated standardized tonnage: 272.3. People recorded in connection with the voyage: Investor: Mouchel; Investor: Beaufils; Captain: Costé, A. The voyage began at Le Havre on 31 December 1765. Principal recorded place where captives were acquired: West Central Africa and St Helena, port unspecified. Principal recorded disembarkation place: Cap Français. Recorded duration of the captives' Atlantic crossing: 65 days. Estimated mortality during the crossing: 1.0%. Recorded outcome: Voyage completed as intended.