Robey Leibbrandt
Sidney Robey Leibbrandt (25 January 1913, Potchefstroom – 1 August 1966), also known as "Robert Leibbrand", was a South African Boer of German and Irish descent who was an Olympic boxer and later an Abwehr member and fifth columnist for Nazi Germany.
Read more about Robey Leibbrandt: Operation Weissdorn, Capture and Imprisonment, Later Life, Further Reading