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 originated in Karlsruhe. Following his graduation from high school in Karlsruhe in 1966, Benneter pursued higher education at the Free University of Berlin, where he studied law, economics, and politics, achieving academic milestones in 1971 and 1974.