Rochambeau, Jean Baptiste Donatien de Vimeur, Comte de (1725–1807), a French army officer who aided Washington in the American Revolution. Rochambeau was educated for the church, but joined the army in 1742. He distinguished himself during the War of the Austrian Succession. In 1749 he succeeded his father as governor of Vendôme. During the Seven Years' War (1756–63) Rochambeau served with distinction in Minorca and Germany.
In 1780, with the rank of lieutenant general, Rochambeau was sent with 6,000 troops to aid General Washington against the British. His army was kept inactive in Rhode Island for a year, but was of great assistance after joining Washington on the Hudson. Rochambeau and his army took part in the fighting that resulted in the surrender of Cornwallis at Yorktown, and Rochambeau made important contributions to the strategy of that campaign.
After his return to France in 1783, Rochambeau was appointed governor of Artois and Picardy and made a marshal of France. He commanded an army during the early days of the French Revolution, but resigned in 1792, disgusted by the excesses of some of the leaders. He was imprisoned and narrowly escaped death by the guillotine. His estates and titles were restored to him by Napoleon.