The Nuttall Encyclopedia
Austrian general, born in Franconia; notorious for his military incapacity and defeats; confronted by Napoleon at Ulm in 1805, he surrendered with 28,000 men without striking a blow; for this he was tried by court-martial, and sentenced to death, which was commuted to imprisonment for life, from which he was released at the end of a year (1752-1826).
Wood, James, ed. Entry for 'Mack, Karl'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/m/mack-karl.html. Frederick Warne & Co Ltd. London. 1900.