Ysenburg Palais was built in 1760 to the plans of court architect Franz Wilhelm Rabaliatti and occupied by members of the court household (chief head gardener von Wynder and the Prince of Ysenburg). Extensions were built in 1775 and again in the late nineteenth century. Gustav Bassermann and his wife Clementine, who throughout her life worked for the common good, occupied the entire complex from 1864 onward.