The provided source material does not contain information regarding a city named Donat in Switzerland. Instead, the text describes "Donat" as a masculine given name and surname with roots in Latin.
Derived from the Latin word "Donatus," which is the past participle of "donare" meaning "to give," the name was historically used by early Christians to signify that a child was either a gift from God or dedicated to Him. While the name has origins in French and English, it is primarily found in Eastern Europe, including Poland, Hungary, Albania, Slovakia, Czechia, and Germany.