Francis II, Holy Roman Emperor
Francis II (; 12 February 1768 – 2 March 1835) was the last Holy Roman Emperor, ruling from 1792 until 6 August 1806, when he dissolved the Holy Roman Empire of the German Nation after the decisive defeat at the hands of the First French Empire led by Napoleon at the Battle of Austerlitz. In 1804, he had founded the Austrian Empire and became Francis I, the first Emperor of Austria, ruling from 1804 to 1835, so later he was named the one and only "Doppelkaiser" (double emperor) in history.
For the two years between 1804 and 1806, Francis used the title and style "by the Grace of God elected Roman Emperor, ever Augustus, hereditary Emperor of Austria" and he was called the "Emperor of both the Holy Roman Empire and Austria". He was also Apostolic King of Hungary and Bohemia as Francis I. He also served as the first president of the German Confederation following its establishment in 1815.
Duchy of Württemberg
The Duchy of Württemberg () was a duchy located in the south-western part of the Holy Roman Empire. It was a member of the Holy Roman Empire from 1495 to 1806. The dukedom's long survival for nearly four centuries was mainly due to its size, being larger than its immediate neighbors. During the Protestant Reformation, Württemberg faced great pressure from the Holy Roman Empire to remain a member. Württemberg resisted repeated French invasions in the 17th and 18th centuries. Württemberg was directly in the path of French and Austrian armies who were engaged in the long rivalry between the House of Bourbon and the House of Habsburg. In 1803, Napoleon raised the duchy to be the Electorate of Württemberg of the Holy Roman Empire. On 1 January 1806, the last Elector assumed the title of King of Württemberg. Later this year, on 6 August 1806, the last Emperor, Francis II, abolished (de facto) the Holy Roman Empire.