Ulric Dahlgren (April 3, 1842 – March 2, 1864) served as a Union Army colonel. He was in command of an unsuccessful 1864 raid on the Confederate capital of Richmond, Virginia, and was killed in the raid. The major consequence of the failed raid was the Dahlgren Affair after incriminating documents were discovered on Dahlgren's corpse.
Read more about Ulric Dahlgren: Early Life, American Civil War