Based on the provided source material, there is no information confirming that Frucht is a city in Germany. The name Frucht appears primarily as a surname associated with several notable individuals, including German doctor and physiologist Adolf-Henning Frucht, American neurologist Michael Frucht, and German-Chilean mathematician Robert (Roberto) Wertheimer Frucht.
The term is also associated with specific concepts in mathematics, such as the Frucht graph and Frucht's theorem. No geographical data or municipal details regarding a city by this name are available in the source text.