Which French nobleman became a major American Revolutionary War general?

The Marquis de Lafayette became a major American Revolutionary War general.

Gilbert du Motier, Marquis de Lafayette, was a French aristocrat who volunteered for the American cause in 1777. He arrived in the United States at age 19 and was appointed a major general in the Continental Army, despite initially having limited combat experience.

Lafayette served closely with George Washington and became one of his trusted officers. He helped command American forces during the Virginia campaign of 1781, including operations that contributed to trapping Cornwallis at Yorktown.

His service strengthened the alliance between France and the United States. Lafayette returned to France after the war but remained a celebrated figure in both countries. During his 1824–1825 tour of the United States, he visited all 24 states then in the Union and received enormous public acclaim.