French general, brother-in-law of Napoleon, who attempted to suppress the Haitian revolt led by the former slave Toussaint Louverture.

Leclerc joined the army in 1792 and distinguished himself at the siege of Toulon. It was in this campaign that he met Napoleon Bonaparte, who developed a great affection for him; Leclerc would serve Napoleon faithfully for the rest of his life. Leclerc was promoted to general after duty in Napoleon's Italian campaign. The relationship was further strengthened by Leclerc's marriage (1797) to Napoleon's sister Pauline Bonaparte (Bonaparte, Pauline). In 1799 Leclerc played a decisive role in the coup that brought Napoleon to power.

After proving his abilities as a general both in the Egyptian campaign and in Germany (1800), Leclerc was sent by Napoleon to subdue the rebellion in Haiti, at that time known as Saint-Domingue. Leclerc, accompanied by 23,000 French troops, landed in Haiti in 1802 and soon took possession of most of the island and made peace with the rebel leaders Henry Christophe (Christophe, Henry), Toussaint Louverture, and Jean-Jacques Dessalines (Dessalines, Jean-Jacques). By treachery, Leclerc captured Toussaint and sent him to France. This and Napoleon's restoration of slavery on Guadeloupe touched off renewed fighting with the black rebels at a time when Leclerc's army was decimated by a yellow fever epidemic. Leclerc himself succumbed in November, and the blacks then resumed the offensive under Christophe and Dessalines. The French surrendered in November 1803.