context: Günther Guillaume (February 1, 1927-April 10, 1995) was the secretary of West German Prime Minister Billy Brandt, but was found to be an East German spa (April 24, 1974). Resigned with political responsibility (May 7, 1974). The incident was not the only reason for Brandt's resignation in that the information that Guillaume handed over to East Germany was not critical to security [1]. Guinter Guillaume's wife Christel has also been found to be a spy.
question: Who is Günther Guillaume's wife?
answers.text: Christel