In which battle was Stonewall Jackson killed in 1863?

Stonewall Jackson was killed in the Battle of Chancellorsville, which took place in May 1863. This battle is notable not just for its tactical significance, but also for the unfortunate circumstances surrounding Jackson's death. He was shot by friendly fire during a nighttime reconnaissance mission. Despite the severe injury he sustained, he initially survived but succumbed to pneumonia eight days later. Chancellorsville is often considered one of General Robert E. Lee's greatest victories, largely due to Jackson’s audacious flanking maneuvers.

The other options refer to different battles with significant impacts but occurred at different times and contexts. The Battle of Antietam was fought in September 1862, the Battle of Gettysburg occurred in July 1863, and the Battle of Bosworth Field was a historical battle in 1485 in England, unrelated to the American Civil War or Stonewall Jackson.