Benneter was born in Karlsruhe. After finishing High School in Karlsruhe in 1966, Benneter studied law, economics and political science at the Free University of Berlin from, passing examinations in 1971 and 1974.
Benneter was born in Karlsruhe. Following his completion of high school in Karlsruhe in 1966, Benneter pursued higher education at the Free University of Berlin, where he studied law, economics, and political science, successfully passing examinations in 1971 and 1974.