 Stationed in the town of Fredericksburg, Lang's men stubbornly contested Federal attempts to lay pontoon bridges across the Rappahannock River.An artillery shell fragment struck the chimney of the building that Lang occupied, and a large chunk of masonry struck him in the head, gravely injuring him.Recovering from his wounds, Lang was promoted to colonel of the 8th Florida on April 30, 1863, and fought at the Battle of Chancellorsville, where his brigade commander, Brig.