Direct architectural models for the Friedrichsbad are the Raitzenbad in Budapest and the Graf-Eberhardsbad (today Palais Thermal) in Wildbad, which Dernfeld visited during his trip with Dr. Frech to get to know the most important health resorts in Germany and Austria-Hungary. The Eberhardsbad in Wildbad was built between 1840 and 1847, the Raitzenbad in Budapest from 1866 to 1873. As far as old writings can be read, Dernfeld is also said to be inspired by the Baths of Caracalla and the Baths of Diocletian in Rome. The extensive excavations were started in 1869. Remnants of Roman baths were found. The opening of the Grand Ducal Friedrichsbad took place on December 15, 1877.
