Karl Freiherr Mack von Leiberich (25 August 1752 – 22 December 1828) was an Austrian soldier. He is best remembered as the commander of the Austrian forces that capitulated to Napoleon's Grande Armée in the Battle of Ulm in 1805. Early career Karl Leiberich was born at Nennslingen, in the Principality of Ansbach. In 1770 he joined an Austrian cavalry regiment, in which his uncle, Leiberich, was a squadron commander, becoming an officer seven years later. During the brief War of the Bavarian Succession he was selected for service on the staff of Count Kinsky, under whom, and subsequently under the commander-in-chief Field Marshal Count Lacy, he did excellent work. He was promoted first lieutenant in 1778, and captain on the quartermaster-general's staff in 1783. Count Lacy, then the foremost soldier of the Austrian army, had the highest opinion of his young assistant. In 1785 Mack married Katherine Gabrieul, and was ennobled under the name of Mack von Leiberich. In the Turkish War he was employed on the headquarters staff, becoming in 1788 major and personal aide-de-camp to the emperor, Joseph II and in 1789 was promoted to lieutenant colonel. He distinguished himself in the storming of Belgrade in 1789. Shortly after this, disagreements between Mack and Ernst Gideon von Laudon, now commander-in-chief, led to the former demanding a court-martial; Mack left the front but received a colonelcy (1789) and the Order of Maria Theresa. In 1790 Laudon and Mack, reconciled, were again on the field together. During these campaigns Mack received a severe head injury from which he never fully recovered. In 1793 he was made quartermaster-general (chief of staff) to Prince Josias of Saxe-Coburg, commanding in the Netherlands and he enhanced his reputation by the ensuing campaign. The young Archduke Charles of Austria, who won his own first laurels in the action of March 1, 1793, wrote after the battle, "Above all we have to thank Colonel Mack for these successes". French Revolutionary Wars Mack distinguished himself again on the field of Neerwinden and had a leading part in the negotiations between Coburg and Dumouriez. He continued to serve as quartermaster-general and was made titular chief (Inhaber) of a cuirassier regiment. He received a wound at Famars and in 1794 was once more engaged in active service after being made a major-general. While Mack had been credited with the initial successes of March–April 1793, the ultimate failure of