Maria Isabella Boyd (May 9, 1844 – June 11, 1900), best known as Belle Boyd (and dubbed the Cleopatra of the Secession or Siren of the Shenandoah, and later the Confederate Mata Hari) was a Confederate spy in the American Civil War. She operated from her father's hotel in Front Royal, Virginia, and provided valuable information to Confederate General Stonewall Jackson in 1862.
