Third Corps, Army of Northern Virginia Third Corps, Army of Northern Virginia The Third Corps, Army of Northern Virginia was a unit of the Provisional Army of the Confederate States. After the death of Lt. General Thomas J. Jackson at the Battle of Chancellorsville, Robert E. Lee reorganized his army from two infantry corps into three corps, giving command of the new Third Corps to A. P. Hill. For Hill's new corps, Lee assigned Hill's old "Light Division", commanded by Major General William Dorsey Pender, from the Second Corps and Richard H. Anderson's division from James Longstreet's First Corps. For the Corps' third division, Lee created
Confederate Army of the Potomac Bull Run and attempted to organize an attack but following a brief skirmish Jones' brigade was thrown back due to heavy artillery fire. Both brigades subsequently withdrew back to Bull Run. The two Confederate armies were consolidated into a single army following the battle, retaining the name "Army of the Potomac" and with Johnston in command; Beauregard was initially posted as its second-in-command but he was soon transferred to the Western Theater. The army was spread through northern Virginia to observe the Union Army of the Potomac in Washington, fighting several small skirmishes including the Battle of Ball's Bluff. In