Pierre Gustave Toutant Beauregard , was a Louisiana-born author, civil servant, politician, inventor, and the first prominent general for the Confederate States Army during the American Civil War.
Beauregard commanded armies in the Western Theater, including at the Battle of Shiloh in Tennessee, and the Siege of Corinth in northern Mississippi. He returned to Charleston and defended it from repeated naval and land attacks in 1863. His arguably greatest achievement was saving the city of Petersburg, Virginia, and thus also the Confederate capital of Richmond, from assaults by overwhelmingly superior Union Army forces in June 1864. However, his influence over Confederate strategy was marred by his poor professional relationships with President Jefferson Davis and other senior generals and officials.
After the war, he was a railroad executive and became one of the few wealthy Confederate veterans because of his role in promoting the Louisiana Lottery. Today he is commonly referred to as P.G.T. Beauregard, but during the war he rarely used his first name and signed correspondence as G.T. Beauregard.