Benjamin Stern was a heth during Operation Wrath of God, during which he worked with and became friends with Gabriel Allon. He later became an historian, working at a university in Munich, and an author of books about the Holocaust.
Benjamin was killed by Eric Lange. Before he died, he told Lange the locations of his files and obvious backups. He had also hidden other files inside doors in his apartment and had left a package in the care of Lillian Ratzinger.