baden experienced growth as a spa, convention city, and administrative seat. The period around the turn of the 19th to 20th century is regarded as the heyday of the city. Kaiser Wilhelm II visited the city regularly in summer, such that it became an unofficial "summer residence". The city was also popular among the Russian nobility. In the wake of the imperial court, numerous nobles, artists and wealthy businessmen increasingly settled in the city. Many wealthy persons chose Wiesbaden as their retirement seat, as it offered leisure and medical treatment alike. In 1894, the present Hessian State Theater, designed by the Vienna architects Fellner and Helmer, was built on behalf of Kaiser Wilhelm II.
After World War I, Wiesbaden fell under the Allied occupation of the Rhineland and was occupied by the French army in 1918. In 1921, the Wiesbaden Agreement on German reparations to France was signed in the city. In 1925, Wiesbaden became the headquarters of the British Rhine Army until the withdrawal of occupying forces from the Rhineland in 1930.
In 1929, an airport was constructed in Erbenheim on the site of a horse-racing track. In 1936, Fighter Squadron 53 of the Luftwaffe was stationed here.
In the Kristallnacht pogrom on November 10, 1938, Wiesbaden's large synagogue on Michelsberg was destroyed. The synagogue had been designed by Phillip Hoffmann and built in 1869. Another synagogue in Wiesbaden-Bierstadt was also destroyed. During the Third Reich, a total of approximately 1200 Wiesbaden Jews were deported and murdered.
General Ludwig Beck of Wiesbaden was one of the planners of the July 20, 1944 assassination attempt of Adolf Hitler. Beck was designated by his fellow conspirators to be future Head of State (Regent) after elimination of Hitler. The plot failed, however, and Beck was forced to commit suicide. Today, the city annually awards the Ludwig Beck prize for civil courage in his honor.
Lutheran pastor and theologian Martin
