The Inter-Allied Rhineland Commission (Haute Commission interalliée des territoires rhénans) was founded as the supreme occupation authority on the basis of the Versailles Peace Treaty and the Rhineland Agreement with French, British, Belgian and US participation.

It had its headquarters in Koblenz since 1920. At the Hague Conference in August 1929, the evacuation of the second occupation zone within the Rhineland occupation was set for November 30, 1929. The Inter-Allied Rhineland Commission now had to look for a new headquarters in the third occupation zone for the last seven months and was relocated to Wiesbaden.

On November 20, 1929, it commenced its activities in the Hotel Wilhelma. On 21.11.1929, the French guard of honor followed her to Wiesbaden. In addition to the Hotel Wilhelma, which served as the headquarters and meeting place of the commission, around 70 villas and 100 apartments were occupied. A total of 580 officers and men were stationed in Wiesbaden to protect the Inter-Allied Rhineland Commission.

In The Hague, 30.06.1930 was also set as the date for the final evacuation of the Rhineland. On this day, the Inter-Allied Rhineland Commission and the French troops left Wiesbaden after a short farewell ceremony.