Mack, Karl von (1752-1828), an Austrian general who rose from the ranks, becoming a captain in the war with Turkey. He was recommended by Laudon to the emperor. In 1793 he was quarter-master-general, and in 1797 commanded the Army of the Rhine. The next year he was defeated by the French near Naples, fled to their camp and was sent as prisoner to Dijon. Yet in 1804 the emperor trusted him with a chief command, which resulted in the historic capitulation of Ulm, when Napoleon took 28,000 Austrian prisoners. Mack was tried for treason and condemned to death, but his sentence was commuted and he was after a time released from prison.