The slave ship Constance left the African coast carrying enslaved Africans toward Haiti. About 270 people had been taken aboard.

Vessel: Constance; flag: France; estimated standardized tonnage: 140. People recorded in connection with the voyage: Investor: Ducoudray-Bourgaux; Captain: Foligny de Chalonges, de. The voyage began at Nantes on 12 November 1774. Principal recorded place where captives were acquired: Malembo (West Central Africa and St Helena). Principal recorded disembarkation place: Léogane. Recorded duration of the captives' Atlantic crossing: 93 days. Recorded outcome: Voyage completed as intended.