French ship Sceptre (1780)

Sceptre was a 74-gun ship of the line of the French Navy.

In 1781 and 1782, she took part in the naval operations in the American Revolutionary War, under Admiral de Grasse. She fought at the Battle of the Chesapeake and at the Battle of the Saintes. In August, Sceptre, Astrée, and FRENCH FRIGATE Engageante, under La Pérouse, raided several English fur trading posts during the Hudson Bay Expedition, including Fort Prince of Wales. In 1783, she was decommissioned in Brest.

On 29 September 1792, she was renamed Convention. She took part in the battle of the Glorious First of June in 1794, engaging HMS Caesar (1793) and HMS Bellerophon (1786). She later took part in the Croisière du Grand Hiver winter campaign of 1794-1795, the Expédition d'Irlande of December 1796, and the Bruix' expedition of 1799.

In August 1800, she was renamed Marengo, and was condemned in 1802. She was used as a prison hulk in Brest before being broken up in 1811.