 Complete the following phrase:  Duke Ferdid Frederick Augustus of Württemberg 22 October 1763  20 January 1834 was the fifth son of Frederick II Eugene, Duke of Württemberg and a Habsburg Austrian general during the French Revolutionary Wars and Napoleonic Wars. As a high-ranking nobleman, he started his military career as an Oberstleutt in 1781. Promoted to General-major in 1788, he fought at Belgrade during the Austro-Turkish War. During the War of the First Coalition he led his troops at 