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

Vessel: Comtesse de Seran; flag: France; estimated standardized tonnage: 305.3. People recorded in connection with the voyage: Investor: Breton de Blessin; Investor: Sebire Dessaudrais; Captain: La Grandrivière, de. The voyage began at Saint-Malo on 9 March 1765. Principal recorded place where captives were acquired: Cabinda (West Central Africa and St Helena). Principal recorded disembarkation place: Cap Français. Recorded duration of the captives' Atlantic crossing: 69 days. Estimated mortality during the crossing: 2.0%. Recorded outcome: Voyage completed as intended.