Charles Frederick, Grand Duke of Baden  Charles Frederick (22 November 1728 – 10 June 1811) was Margrave, Elector and later Grand Duke of Baden (initially only Margrave of Baden-Durlach) from 1738 until his death. Born at Karlsruhe, he was the son of Hereditary Prince Frederick of Baden-Durlach and Amalia of Nassau-Dietz (13 October 1710 – 17 September 1777), the daughter of Johan Willem Friso of Nassau-Dietz. He succeeded his grandfather as Margrave of Baden-Durlach in 1738 and ruled personally from 1746 until 1771, when he inherited Baden-Baden from the "Bernhard Line". Upon inheriting the latter margraviate, the original land of Baden was reunited. He was regarded as a good example of an enlightened despot, supporting schools, universities, jurisprudence, civil service, economy, culture, and urban development. He outlawed torture in 1767, and serfdom in 1783. He was elected a Royal Fellow of the Royal Society in 1747   In 1803, Charles Frederick became Elector of Baden, and in 1806 the first Grand Duke of Baden. Through the politics of minister Sigismund Freiherr von Reitzenstein, Baden acquired the Bishopric of Constance, and the territories of the Bishopric of Basel, the Bishopric of Strassburg, and the Bishopric of Speyer that lay on the right bank of the Rhine, in addition to Breisgau and Ortenau. In 1806, Baden joined the Confederation of the Rhine. Together with his architect, Friedrich Weinbrenner, Charles Frederick was responsible for the construction of the handsome suite of classical buildings that distinguish Karlsruhe. He died there in 1811, and was one of the few German rulers to die during the Napoleonic era. Charles Frederick married Caroline Louise of Hesse-Darmstadt on 28 January 1751. She was the daughter of Louis VIII of Hesse-Darmstadt, was born on 11 July 1723 and died on 8 April 1783. Charles Frederick and Caroline Louise had the following children:  Charles Frederick married Louise Caroline, Baroness Geyer of Geyersberg as his second wife on 24 November 1787. She was the daughter of Lt. Col. Louis Henry Philipp, Baron Geyer of Geyersberg and his wife Maximiliana Christiane, Countess of Sponeck.