Bad Kissingen is a German spa town in the Bavarian region of Lower Franconia and seat of the district Bad Kissingen. Situated to the south of the Rhön Mountains on the Franconian Saale river, it is one of the health resorts, which became famous as a "Weltbad" in the 19th century. In 2021, the town became part of the transnational UNESCO World Heritage Site under the name "Great Spa Towns of Europe", because of its famous mineral springs and its architecture exemplifying the popularity of spa resorts in Europe during the 18th through 20th centuries. History The town was first documented in the year 801 under the name chizzicha and was renowned above all for its mineral springs, which are recorded from as early as 823. At that time, Kissingen was under the domination of Fulda Abbey, later it fell to the Counts of Henneberg and was sold to the bishops of Würzburg in the 14th century. Kissingen was first mentioned as "oppidum" (town) in 1279. The town developed to a spa in the 1500s and recorded its first official spa guest in 1520. In 1814, Kissingen became part of Bavaria. The town grew to be a fashionable resort in the 19th century, and was extended during the reign of Ludwig I of Bavaria. Crowned heads of state such as Empress Elisabeth of Austria, Tsar Alexander II of Russia and King Ludwig II of Bavaria, who bestowed the 'Bad' on Kissingen in 1883, were among the guests of the spa at this time. Other well-known visitors to the resort included author Leo Tolstoy, composer Gioachino Rossini and artist Adolph von Menzel. On 10 July 1866, during the Mainfeldzug (campaign at the river Main) of the Austro-Prussian War, Kissingen was the site of fierce battle between Bavarian and Prussian troops, which ended with a Prussian victory. Imperial Chancellor Otto von Bismarck visited Kissingen's spas many times, and in 1874 in the course of the Kulturkampf he survived an assassination attempt by the catholic Eduard Franz Ludwig Kullmann there. In 1877 the Kissingen Dictation (German: Kissinger Diktat) was written here, in which Bismarck explained the principles of his foreign policy. Bismarck's former home in Kissingen is now the Bismarck Museum. In June 1911 Alfred von Kiderlen-Waechter, German Secretary of State, and the French ambassador Jules Cambon had negotiations in Bad Kissingen about Morocco without achieving a solution. The failure of the negotiations