Louis Lebèque Duportail

Louis Lebèque Duportail (1743–1802) was a French military leader who served as a volunteer and the chief engineer in the Continental Army during the American Revolutionary War. He also served as the French Minister of Defense during the beginning of the French Revolution.

Duportail was born near Orleans, France, in 1743. He graduated from the royal engineer school in Mézières, France, as a qualified engineer officer in 1765. Promoted to lieutenant colonel in the Royal Corps of Engineers, Duportail was secretly sent to America in March 1777 to serve in Washington's Continental Army under an agreement between Benjamin Franklin and the government of King Louis XVI of France. He was appointed colonel and commander of all engineers in the Continental Army, July 1777; brigadier general, November 17, 1777; commander, Corps of Engineers, May 1779; and major general (Brevet), November 16, 1781.

Duportail participated in fortifications planning from Boston, Massachusetts to Charleston, South Carolina and helped Washington evolve the primarily defensive military strategy that wore down the British Army. He also directed the construction of siege works at the Battle of Yorktown, site of the decisive American victory of the Revolutionary War.

Returning to France in October 1783, Duportail became an infantry officer and in 1788 a field marshal. He served as France's minister of war from November 16, 1790, through December 7, 1791, during the beginning of the French Revolution and promoted military reforms. Forced into hiding by radical Jacobins, he escaped to America and bought a farm near Valley Forge, Pennsylvania. He lived there until 1802, when he died at sea while attempting to return to France.

Some sources spell his name as Louis le Bègue du Presle Duportail. Also, the middle name Lebègue ('g' instead of a 'q') is sometimes used.

References

"This article contains public domain text from" cite web | title=Major General Louis Lebègue Duportail
work=Portraits and Profiles of Chief Engineers | url=http://www.hq.usace.army.mil/history/coe.htm#3 | accessmonthday=May 11 | accessyear=2005