Archduke Charles, Duke of Teschen

Archduke Charles Louis John Joseph Lawrence of Austria, Duke of Teschen was an Austrian field marshal, the third son of Emperor Leopold II and Maria Luisa of Spain. He was also the younger brother of Francis II, Holy Roman Emperor. He was epileptic, but achieved respect both as a commander and as a reformer of the Austrian Army. He was considered one of Napoleon's most formidable opponents and one of the greatest generals of the French Revolutionary and Napoleonic Wars. Charles wrote several military works as well.